Ask a vet online – ‘my dog only has one testicle down – what is the best age to have him neutered?’

Question from Pam Gilmour

Hi my chi(huahua) is 6 months , he only has one testicle. I will be having him done, what would be the best age to wait to see if it will come down?

Answer from Shanika (online vet)

Hi Pam and thank you for your Question regarding the best age to have a dog castrated which has a retained testicle.

I will start by explaining a little about the testicles, what they are, where they develop and what can go wrong along the way.

The testicles are two oval shaped structures normally found in the scrotum (loose sac of skin near your dog’s bottom). Testicles are male sexual glands and produce the hormone testosterone along with sperm and various other secretions which assist in reproduction.

The testicles start developing while the puppy is inside the mother’s uterus (womb); they are at first located inside the abdomen (tummy) and just behind the kidneys. A few days after your puppy has been born the testicles should be in the scrotum, they travel from their starting point down through the abdomen and through an opening called the inguinal ring in order to get to the scrotum.

When you take your puppy to the vets to have his first examination they will check for the presence of two testicles in the scrotum, if these cannot be felt then this will be checked again on future visits.  If both testicles are not present this condition is referred to as cryptorchidism (retained testicles), either one (unilateral cryptorchid) or both (bilateral cryptorchid) of the testicles may be missing from the scrotum.  In very rare cases on or both of the testicles has not actually developed at all.

What should you do if your dog has cryptorchidism?

Your vet is likely to suggest that you wait to see if the missing testicle comes down into the scrotum at a later date, this would usually be by 6 months of age but in some cases can occur up to 1 year of age.

What to do if the testicle does not appear?

Your vet will discuss a castration procedure with you in which both testicles are removed, it is a simple procedure to remove under general anaesthesia the testicle present in the scrotum, the retained one has to be located in your dog’s abdomen, and this can take some time. The surgical procedure to find and remove the testicle from the abdomen can be tricky as the testicle which has not found its way to the scrotum is often smaller and therefore not so easy to locate in amongst the contents of your dog’s abdomen.

Why should I have my dog castrated if he has cryptorchidism?

If the testicles are not in their correct location in the scrotum there is an increased chance of them becoming diseased, such as developing into cancerous tissue. Also a dog with cryptorchidism is likely to have reduced fertility and would not be an ideal candidate for breeding.

I hope that I have managed to answer your question regarding the timing of castration in a cryptorchid dog and have managed to explain some of the reasoning behind why it happens and what the best plan of treatment is.

Shanika Winters MRCVS(online vet)

If you are worried about your dog please book an appointment with your vet or use our online symptom checker.

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170 thoughts on “Ask a vet online – ‘my dog only has one testicle down – what is the best age to have him neutered?’

  1. I have a 4yr. old Chihuahua that has an undescended testicle. I am so afraid of having this surgery on him. He is like my baby. Because I’m not able to prepare him for this, assure him I will be back for him and he will be ok. How long does the pet usually have to stay in a cage before the surgery? He’s never been in a cage. Is there a medicine to give him to help him relax before we get to the vet for surgery.

    Thank you!

    1. Tami – Definitely speak to your vets, the team will be able to answer all your questions and reassure you… they may even show you where he will be while recovering.

  2. I have a 4yr. old Chihuahua that has an undescended testicle. I am so afraid of having this surgery on him. He is like my baby. Because I’m not able to prepare him for this, assure him I will be back for him and he will be ok. How long does the pet usually have to stay in a cage before the surgery? He’s never been in a cage. Is there a medicine to give him to help him relax before we get to the vet for surgery.

    Thank you!

    1. Tami – Definitely speak to your vets, the team will be able to answer all your questions and reassure you… they may even show you where he will be while recovering.

  3. HI. Could you please tell me if my puppy now 15 weeks
    with not testicles descended can be operated on like a human to bring them down? My vet said at 10 weeks
    that one was down and he could feel the other one,. However on a visit last week none could be felt and it was like they had gone back up. Is this possible? My vet was perplexed and said he had never known any go back up.
    thankyou,

    1. I had my 6 month old chawawa to vet to have nutered and only 1 was down. I was advised that it cpuld still come down in next few months to wait and give it time. My vet does not like to fix my animals till they r at least 6 months old . That hives thier bodirs time for things to move sometimes it can take up to a year for both to dtop. Hope this helps

  4. HI. Could you please tell me if my puppy now 15 weeks
    with not testicles descended can be operated on like a human to bring them down? My vet said at 10 weeks
    that one was down and he could feel the other one,. However on a visit last week none could be felt and it was like they had gone back up. Is this possible? My vet was perplexed and said he had never known any go back up.
    thankyou,

  5. My dog was castrated today but only one testical was found despite searching in his abdomen. The vet said he now needs an injection every day for life, why and is it really necessary?

    1. Hi, there has been trials of dogs having hormone injections, but the evidence of how much it is effective is often disputed. We suggest having a good chat with your vet and discussing the options available – if there is anything you are not happy with or don’t understand, then ask them to explain further.

  6. My dog was castrated today but only one testical was found despite searching in his abdomen. The vet said he now needs an injection every day for life, why and is it really necessary?

    1. Hi, there has been trials of dogs having hormone injections, but the evidence of how much it is effective is often disputed. We suggest having a good chat with your vet and discussing the options available – if there is anything you are not happy with or don’t understand, then ask them to explain further.

  7. My vet gave the hormone injections over a 10 day
    period at a cost of over £100 which did no good whatsoever.
    Another person said that the testicles could be dragged
    down and stitched in place. Has anyone any knowledge
    of this procedure?

  8. My vet gave the hormone injections over a 10 day
    period at a cost of over £100 which did no good whatsoever.
    Another person said that the testicles could be dragged
    down and stitched in place. Has anyone any knowledge
    of this procedure?

  9. Hello Doctor ,

    our dog is 8yrs old he has cryptorchidism since birth but our doctor say we operate him after 7 yrs … now age of 8th his testicles become big in body noe doctor say we operate …is it safe plz reply

    1. Hi, all operations, no matter what they are, carry some amount of risk – so to say it is safe would be unfair of us. We’d advise speaking fully to your vet and telling them your concerns – we are sure they will be able to put your mind at rest.

  10. Hello Doctor ,

    our dog is 8yrs old he has cryptorchidism since birth but our doctor say we operate him after 7 yrs … now age of 8th his testicles become big in body noe doctor say we operate …is it safe plz reply

    1. Hi, all operations, no matter what they are, carry some amount of risk – so to say it is safe would be unfair of us. We’d advise speaking fully to your vet and telling them your concerns – we are sure they will be able to put your mind at rest.

    1. Hi my Puppy only has one testicle. He is a 7 month old Pit Bull. Once he gets older I wanted to breed him. Do you think the testicle can still drop or is he in danger. I am very worried about him. Breeding him is not important, his health is. Thank you.

      1. Hi Ginger. Try not to worry – pop him along to your vet for a check-up and they’ll be able to examine him and give you an idea as to whether they think it’ll still drop or not. If they don’t think it will, they’ll probably advise castration to avoid any risks further down the line.

  11. I had my dog neutered 3 years ago at age 8. His sac was left but now it looks like he has another testical in there when before it looked like a deflated balloon. Its not hard. It feels like he has fluid in it. What could this be. Please and thank you!

  12. I had my dog neutered 3 years ago at age 8. His sac was left but now it looks like he has another testical in there when before it looked like a deflated balloon. Its not hard. It feels like he has fluid in it. What could this be. Please and thank you!

  13. Hi,
    My 9 month old maltese shih-tzu has still only dropped one testical, what are the chances that the other remaining in his abdomen could turn cancerous and if I have him neutered, at what age would be best ?
    Thanks
    Geoff

    1. Hi Geoff, the advice we would give is to speak to your vet again with your concerns – they are best placed to examine and advise about neutering as many vets are different. With regards whether the remaining one would turn cancerous, its almost impossible to say, again your own vet should be able to give your their best advice.

  14. Hi,
    My 9 month old maltese shih-tzu has still only dropped one testical, what are the chances that the other remaining in his abdomen could turn cancerous and if I have him neutered, at what age would be best ?
    Thanks
    Geoff

    1. Hi Geoff, the advice we would give is to speak to your vet again with your concerns – they are best placed to examine and advise about neutering as many vets are different. With regards whether the remaining one would turn cancerous, its almost impossible to say, again your own vet should be able to give your their best advice.

  15. Hello,

    I’ve a 5yr old Lab and he has 1 testicle. I’ve been noticing for about 3-4 days now that his 1 visible testicle has some what swollen.

    I remember almost 2yrs ago, he mentioned that we should go for castration but like all pet lovers, I am really scared him. It actually pains to even think about the whole deal. But I know this will all be for his better health.

    Is there some advice or opinions the whole swollen testicle and castration?

    Thank you for your time.

    Regards,
    Paul

  16. Hello,

    I’ve a 5yr old Lab and he has 1 testicle. I’ve been noticing for about 3-4 days now that his 1 visible testicle has some what swollen.

    I remember almost 2yrs ago, he mentioned that we should go for castration but like all pet lovers, I am really scared him. It actually pains to even think about the whole deal. But I know this will all be for his better health.

    Is there some advice or opinions the whole swollen testicle and castration?

    Thank you for your time.

    Regards,
    Paul

  17. Hello, I have a black pug and he is 1 year and 4 months. He has 1 ball (other never fell and could.never be felt) and he marks EVERYTHING…we have been looking at getting him neutered but to find the other one is a little pricy. Do you know if it is possible to do the chemical neutering or should it be done on both? Also, do you think it would help with his marking?

  18. Hello, I have a black pug and he is 1 year and 4 months. He has 1 ball (other never fell and could.never be felt) and he marks EVERYTHING…we have been looking at getting him neutered but to find the other one is a little pricy. Do you know if it is possible to do the chemical neutering or should it be done on both? Also, do you think it would help with his marking?

  19. My nephew gave me his toy poodle & the poodle only has one testicle that dropped & he’s 13 yrs old, when I took him to vet they had said that he’s too old for surgery, now his resticle is hugh. He doesn’t cry or act different like if it bothers him or in any pain. What will happen? Will he survive a surgery & is that surgery expensive? Is it cancer?

    1. Hi, we strongly suggest you go back to your vet and discuss your concerns with them. The questions you have asked are impossible to answer and they are best placed to answer, given the medical history and examination.

  20. My nephew gave me his toy poodle & the poodle only has one testicle that dropped & he’s 13 yrs old, when I took him to vet they had said that he’s too old for surgery, now his resticle is hugh. He doesn’t cry or act different like if it bothers him or in any pain. What will happen? Will he survive a surgery & is that surgery expensive? Is it cancer?

    1. Hi, we strongly suggest you go back to your vet and discuss your concerns with them. The questions you have asked are impossible to answer and they are best placed to answer, given the medical history and examination.

  21. Hi , I have a seven month old American akita , one of his testicles has never came down and recently within the past few weeks he’s started limping we took him vets and bought some antibiotics( was told he has banged his knee so we gave them to him, but this hasnt helped we are going to get him castrated , is this a common symptom because I can’t see anything stuck in his paw , just not sure weather to rush the operation on he’s booked in for two weeks time but hate seeing him limping x

  22. Hi , I have a seven month old American akita , one of his testicles has never came down and recently within the past few weeks he’s started limping we took him vets and bought some antibiotics( was told he has banged his knee so we gave them to him, but this hasnt helped we are going to get him castrated , is this a common symptom because I can’t see anything stuck in his paw , just not sure weather to rush the operation on he’s booked in for two weeks time but hate seeing him limping x

  23. i have a husky malmute he is 13months and only got one tesicle i dont know what to do will he need a opartion because off this it does not Bother him at the moment just curious about it thankyou

  24. i have a husky malmute he is 13months and only got one tesicle i dont know what to do will he need a opartion because off this it does not Bother him at the moment just curious about it thankyou

    1. Hi Alma, the neutering procedure will be the same operation as locating the missing testicle. Your dog my have two wounds, in the normal place on the testicular sac and possible further up towards the abdomen – it is all according to where the vet can find the testicle that is hiding! Speak to your vet to find out more advice, but we hope that helps a bit. Dave RVN Vet Help Direct

    1. Hi Alma, the neutering procedure will be the same operation as locating the missing testicle. Your dog my have two wounds, in the normal place on the testicular sac and possible further up towards the abdomen – it is all according to where the vet can find the testicle that is hiding! Speak to your vet to find out more advice, but we hope that helps a bit. Dave RVN Vet Help Direct

  25. My male chihuahua has only had one descended testicle since his first vet check. I’ve checked from time to time since his first exam with no change in the status. Yesterday I brought him in at 27 weeks (6 months) for an exam and to set up his neuter since 6 months seems to be the recommended age for this situation & the vet said he could feel it close to the ring, but definitely not descended. Well, today he has 2! Both have magically made their fashionably late appearance. From everything I’ve read, this is highly unusual. I do plan to call my vet in the morning, but in the meantime, I feel like “what just happened here?!?!” Is it possible he vet exam nudged them in the direction they needed to go? I’ve been checking the whole time, guess I just didn’t have the right touch??? I also fear that the late bloomer will find its way back to wherever it was hidden??? I’m almost afraid to get to excited!

  26. My male chihuahua has only had one descended testicle since his first vet check. I’ve checked from time to time since his first exam with no change in the status. Yesterday I brought him in at 27 weeks (6 months) for an exam and to set up his neuter since 6 months seems to be the recommended age for this situation & the vet said he could feel it close to the ring, but definitely not descended. Well, today he has 2! Both have magically made their fashionably late appearance. From everything I’ve read, this is highly unusual. I do plan to call my vet in the morning, but in the meantime, I feel like “what just happened here?!?!” Is it possible he vet exam nudged them in the direction they needed to go? I’ve been checking the whole time, guess I just didn’t have the right touch??? I also fear that the late bloomer will find its way back to wherever it was hidden??? I’m almost afraid to get to excited!

  27. Hi there! Thank you for your answers about cryptorchid dogs. Our 7 month old sheltie puppy is a unilateral cryptorchid. We’d like to wait until he’s 12 months old before surgery, in the unlikely case that the second testical drops. In the meantime, I’ve read that the testosterone level can be higher because the undescended testical is warmer internally and therefore produces more testosterone. Is this true?
    Our pup is very sweet and not aggressive with humans but has taken to humping our 8 year old collie constantly. She’s not too happy with that form of attention. Is there anyway to lessen his testosterone level with medication prior to neutering?
    Secondly,is it possible to locate the undescended testical using perhaps ultrasound just prior to the surgery? It seems like that would be safer than searching around during the procedure.

    1. Hi Susan, there are certain drugs that can be short term ‘chemical castration’, please speak to your vet to see if they administer these (normally an injection). Some vets may have a technique for locating undescended testicles using a variety of methods, again speaking to your own vet might shed some more light on it.

  28. Hi there! Thank you for your answers about cryptorchid dogs. Our 7 month old sheltie puppy is a unilateral cryptorchid. We’d like to wait until he’s 12 months old before surgery, in the unlikely case that the second testical drops. In the meantime, I’ve read that the testosterone level can be higher because the undescended testical is warmer internally and therefore produces more testosterone. Is this true?
    Our pup is very sweet and not aggressive with humans but has taken to humping our 8 year old collie constantly. She’s not too happy with that form of attention. Is there anyway to lessen his testosterone level with medication prior to neutering?
    Secondly,is it possible to locate the undescended testical using perhaps ultrasound just prior to the surgery? It seems like that would be safer than searching around during the procedure.

    1. Hi Susan, there are certain drugs that can be short term ‘chemical castration’, please speak to your vet to see if they administer these (normally an injection). Some vets may have a technique for locating undescended testicles using a variety of methods, again speaking to your own vet might shed some more light on it.

  29. Hi! Please i need your advice regarding my 3 year old Yorkshire. My dog only has one testicle and i still havent had him operated. I am extremly scared. At what age can this problem turn into cancer?

  30. Hi! Please i need your advice regarding my 3 year old Yorkshire. My dog only has one testicle and i still havent had him operated. I am extremly scared. At what age can this problem turn into cancer?

  31. Hi my British bulldog is 6 month’s old and only one testicles down but if I have a good feel around him you can find the other one what can I do to bring it down .thanks

    1. Hi Thomas,

      There is not much you can do, but hope nature takes it’s course… sometimes both do descend it’s according to where they are located and how far up they are. Some owners try to help them down by manipulation, but its rarely successful.

  32. Hi my British bulldog is 6 month’s old and only one testicles down but if I have a good feel around him you can find the other one what can I do to bring it down .thanks

    1. Hi Thomas,

      There is not much you can do, but hope nature takes it’s course… sometimes both do descend it’s according to where they are located and how far up they are. Some owners try to help them down by manipulation, but its rarely successful.

    1. Hi Brina, hopefully all is well. This blog is UK based and is not monitored overnight. In cases such as yours we’ll always advise contacting your own veterinary professionals.

    1. Hi Brina, hopefully all is well. This blog is UK based and is not monitored overnight. In cases such as yours we’ll always advise contacting your own veterinary professionals.

  33. i have a dog which right now he is in a shelter because he escaped but we tried to get him out of the shelter but they told because we dont have the license of the dog we need to neuter him becuase he only has one testical but does it effect anything and do i need to

    1. Hi Vilma, I’m afraid we cannot comment on this case as it may be the policy in your part of the world. We are based in the UK, so have different rules and regulations. Please seek advice of your local veterinarian, as they would know more.

  34. i have a dog which right now he is in a shelter because he escaped but we tried to get him out of the shelter but they told because we dont have the license of the dog we need to neuter him becuase he only has one testical but does it effect anything and do i need to

    1. Hi Vilma, I’m afraid we cannot comment on this case as it may be the policy in your part of the world. We are based in the UK, so have different rules and regulations. Please seek advice of your local veterinarian, as they would know more.

  35. I’m thinking about buying a dog that is 16weeks old from a family friend. I’ve just been told the dog has only had one injections and has been going out. Is the dog in danger of getting an infection? What else should I be worried about? Thanks

    1. Hello Barry, although one injection will give some resistance to infections, it is important that you have a visit to your vet and get the puppy a full set of primary vaccinations. They will be able to give your dog a complete health check and advise of any other worries you may have.

  36. I’m thinking about buying a dog that is 16weeks old from a family friend. I’ve just been told the dog has only had one injections and has been going out. Is the dog in danger of getting an infection? What else should I be worried about? Thanks

    1. Hello Barry, although one injection will give some resistance to infections, it is important that you have a visit to your vet and get the puppy a full set of primary vaccinations. They will be able to give your dog a complete health check and advise of any other worries you may have.

  37. Hi my male chow chow pup who is almost 6 months old,has bilateral cryptorchidism,I think as I cannot see or feel his testicals,when I took my boy to the vets to get micro chipped,the vet asked if he had been castrated,I laughed as he was only 12wks old,the vet said,she couldn’t find his testicals and would need an operation,I am unsure ov what age is best for him to have this procedure done,and also the cost Any help or information would be gratefully appreciated. Many thanks for your time. Kind regards. Nicola

  38. Hi my male chow chow pup who is almost 6 months old,has bilateral cryptorchidism,I think as I cannot see or feel his testicals,when I took my boy to the vets to get micro chipped,the vet asked if he had been castrated,I laughed as he was only 12wks old,the vet said,she couldn’t find his testicals and would need an operation,I am unsure ov what age is best for him to have this procedure done,and also the cost Any help or information would be gratefully appreciated. Many thanks for your time. Kind regards. Nicola

  39. Hi, i have an 17 weeks old American bully. One of his testicle is on the scrotum and the other is not but, is in low position and when i push it little bit with gently movements it’s going on the scrotum but after is going back again. When he is seated then some times is visible on the scrotum or if i will pull his skin up on this place then the testicle is there. when he is standing on 4 legs then only 1 testicle is visible on the scrotum. What’s about this situation ? Does he has crypto or not? I don’t trust Vets here in the country that i leave now. Please let me know if he has crypto or not. Thanks !

    1. Hi Steve, dogs develop at their own pace and there is still time for both testicles to fall into the correct position. We would expect most dogs to have two descended testicles by the age of 6 months (your puppy is younger than this) and some may take longer, up until about 1 year of age. Keep an eye on the situation and try to find a vet that you trust so that they may examine your puppy and determine whether he is cryptorchid as it will be important for them to advise you on the best course of action if he is.

  40. Hi, i have an 17 weeks old American bully. One of his testicle is on the scrotum and the other is not but, is in low position and when i push it little bit with gently movements it’s going on the scrotum but after is going back again. When he is seated then some times is visible on the scrotum or if i will pull his skin up on this place then the testicle is there. when he is standing on 4 legs then only 1 testicle is visible on the scrotum. What’s about this situation ? Does he has crypto or not? I don’t trust Vets here in the country that i leave now. Please let me know if he has crypto or not. Thanks !

    1. Hi Steve, dogs develop at their own pace and there is still time for both testicles to fall into the correct position. We would expect most dogs to have two descended testicles by the age of 6 months (your puppy is younger than this) and some may take longer, up until about 1 year of age. Keep an eye on the situation and try to find a vet that you trust so that they may examine your puppy and determine whether he is cryptorchid as it will be important for them to advise you on the best course of action if he is.

  41. My five month old boxer puppy as one descended testicle and one very close to descending fully into scrotum. But on standing it’s not dropped.its sometimes there when sitting and sometimes when lying down on his back. I can pop it into scrotum very easily. Does this mean I have hope that the eguinal ring as closed and it will fully drop to stay ?

    1. Hi Jill, Some dogs don’t fully develop until the age of 1 year so at 5 months there’s still time for his second testicle to descend fully. I’d recommend having it checked by your vet periodically and they’ll be able to advise you on the best course of action should it not develop fully. Best wishes.

  42. My five month old boxer puppy as one descended testicle and one very close to descending fully into scrotum. But on standing it’s not dropped.its sometimes there when sitting and sometimes when lying down on his back. I can pop it into scrotum very easily. Does this mean I have hope that the eguinal ring as closed and it will fully drop to stay ?

    1. Hi Jill, Some dogs don’t fully develop until the age of 1 year so at 5 months there’s still time for his second testicle to descend fully. I’d recommend having it checked by your vet periodically and they’ll be able to advise you on the best course of action should it not develop fully. Best wishes.

    1. Hi Jake, your French bulldog is still very young, there is much time for the second testicle to develop. If it doesn’t however, and he remains cryptorchid, it is generally recommended that they are castrated and it’s not thought sensible to breed from such a dog. Have him regularly checked by your vet and discuss the best plan of action with them. Many thanks.

    1. Hi Jake, your French bulldog is still very young, there is much time for the second testicle to develop. If it doesn’t however, and he remains cryptorchid, it is generally recommended that they are castrated and it’s not thought sensible to breed from such a dog. Have him regularly checked by your vet and discuss the best plan of action with them. Many thanks.

  43. Hi, I have a 13 month old whippet × lurcher. Neither of his testicle’s dropped, so after many visits to our vet, she decided after he turned one to castrate him, how ever when she opened him up was in utter do’s belief, he actually hasn’t got any! She has been high up inside him and cannot find them anywhere, further scans confirmed he does not have any. I’ve been told this is extremely rare, any help or info on this matter would be gratefuly received as I am worried sick!
    Many thanks,
    Claire

  44. Hi, I have a 13 month old whippet × lurcher. Neither of his testicle’s dropped, so after many visits to our vet, she decided after he turned one to castrate him, how ever when she opened him up was in utter do’s belief, he actually hasn’t got any! She has been high up inside him and cannot find them anywhere, further scans confirmed he does not have any. I’ve been told this is extremely rare, any help or info on this matter would be gratefuly received as I am worried sick!
    Many thanks,
    Claire

  45. Hi, I have a Doberman of 16 months who only had one testicle, been waiting and hoping it would drop, I was recommended by my vet to castrate him to find after 4 vets looking he never had another testicle, so I never actually needed to castrate him, I’m now worried it will cause further problems, any advice would be great.

    Many thanks
    Michelle

    1. Hi Michelle, it was right for the vets to operate and search for that testicle due to the health risk of leaving it. As for leaving him un-castrated, it’s not recommended that you breed from a dog with only one testicle anyway. Therefore it sensible to castrate him considering the benefits that come with castration in terms of reducing the risk of tumours, your dog straying in search of a bitch etc. To be doubly sure that there isn’t a testicle remaining which could cause problems, some will have their dog scanned. If you haven’t already, it might be worth speaking with your vet about this option. Thanks for getting in touch, best wishes.

  46. Hi, I have a Doberman of 16 months who only had one testicle, been waiting and hoping it would drop, I was recommended by my vet to castrate him to find after 4 vets looking he never had another testicle, so I never actually needed to castrate him, I’m now worried it will cause further problems, any advice would be great.

    Many thanks
    Michelle

    1. Hi Michelle, it was right for the vets to operate and search for that testicle due to the health risk of leaving it. As for leaving him un-castrated, it’s not recommended that you breed from a dog with only one testicle anyway. Therefore it sensible to castrate him considering the benefits that come with castration in terms of reducing the risk of tumours, your dog straying in search of a bitch etc. To be doubly sure that there isn’t a testicle remaining which could cause problems, some will have their dog scanned. If you haven’t already, it might be worth speaking with your vet about this option. Thanks for getting in touch, best wishes.

  47. Hi. I have a 3 month old American Akita. Only the left testicle has descended. His Veterinarian recommended to have him castrated by 4 months. What is the most I can wait for this breed to see if the other one descends?

    1. Hi Juan, in dogs, both testicles are usually descended by the age of six months however it can take up to a year. In terms of deciding how long you can wait, this is best talked through with your vet who can assess the situation based on your dogs level of maturity by examining him. Don’t forget, you can always go to another vet for a second opinion to ease your mind. Best wishes.

  48. Hi. I have a 3 month old American Akita. Only the left testicle has descended. His Veterinarian recommended to have him castrated by 4 months. What is the most I can wait for this breed to see if the other one descends?

    1. Hi Juan, in dogs, both testicles are usually descended by the age of six months however it can take up to a year. In terms of deciding how long you can wait, this is best talked through with your vet who can assess the situation based on your dogs level of maturity by examining him. Don’t forget, you can always go to another vet for a second opinion to ease your mind. Best wishes.

  49. I have a male Shepard they just turned 6 months old with only one testicle so far. There was a time when you could see the second testicle but it had not dropped. I was not worried thinking it would soon but now there is no sign of it. My first question is , If the second one was to drop, would this be a bad trait to have for breeding? My second question is, is now a good time to have him fixed and have the vet search for the second testicle, or would you recommend waiting for a full year and then have it done? Your opinion and service is greatly appreciated! I thank you and my dog thanks you…. Dave

    1. Hi Dave, in terms of ‘best time to neuter’, particularly with a larger breed of dog, it is hard to say without knowing his history and without examining him, that is why it really is best that you discuss that in consultation with your vet. It can take up to a year for the testicles to fully descend so as for whether he should be ‘written off’ as a breeding dog, again, your vet is best placed t help to decide. If you do wait a while and they both descend, your vet can judge whether they are ‘normal’ and healthy for breeding. It is worth liaising with the vet too to determine that he is suitable for breeding in a more general sense (health and temperament) and really considering if it’s something you want to embark upon e.g can you find sensible owners for puppies considering this highly wonderful but intelligent breed with a high exercise and mental stimulation requirement. I hope that helps in some way.

  50. I have a male Shepard they just turned 6 months old with only one testicle so far. There was a time when you could see the second testicle but it had not dropped. I was not worried thinking it would soon but now there is no sign of it. My first question is , If the second one was to drop, would this be a bad trait to have for breeding? My second question is, is now a good time to have him fixed and have the vet search for the second testicle, or would you recommend waiting for a full year and then have it done? Your opinion and service is greatly appreciated! I thank you and my dog thanks you…. Dave

    1. Hi Dave, in terms of ‘best time to neuter’, particularly with a larger breed of dog, it is hard to say without knowing his history and without examining him, that is why it really is best that you discuss that in consultation with your vet. It can take up to a year for the testicles to fully descend so as for whether he should be ‘written off’ as a breeding dog, again, your vet is best placed t help to decide. If you do wait a while and they both descend, your vet can judge whether they are ‘normal’ and healthy for breeding. It is worth liaising with the vet too to determine that he is suitable for breeding in a more general sense (health and temperament) and really considering if it’s something you want to embark upon e.g can you find sensible owners for puppies considering this highly wonderful but intelligent breed with a high exercise and mental stimulation requirement. I hope that helps in some way.

  51. Hi I have a 3 kg jack x chihuahua
    He only has one testicle. Ive been asking the vet to castrate him since I bought him one year ago he is about 2 now but He is a sprayer. And sprays everywhere downstairs regardless easy open access outside all times.
    vet initially kept putting me off doing the castration saying because unsure of his exact age. Kept saying wait to see if other one drops. After a year I’m not happy with that vets service.
    I’ve just rang another vet to be told it’s a costlier castration bill as they have to locate lost testicle deep inside because it cannot be felt. it can be very dangerous in long term if left. It’s really a must and Not so much a choice. So instead of looking at £150 bill I’m now looking at a £450 bill. I’m very annoyed this was not explained at previous vets. I am going to write to complain as theyre part of national known group of vets.. im shocked at such huge difference in price that I really can’t afford. The most help I can get is
    £50 voucher from national dog charity.

  52. Hi I have a 3 kg jack x chihuahua
    He only has one testicle. Ive been asking the vet to castrate him since I bought him one year ago he is about 2 now but He is a sprayer. And sprays everywhere downstairs regardless easy open access outside all times.
    vet initially kept putting me off doing the castration saying because unsure of his exact age. Kept saying wait to see if other one drops. After a year I’m not happy with that vets service.
    I’ve just rang another vet to be told it’s a costlier castration bill as they have to locate lost testicle deep inside because it cannot be felt. it can be very dangerous in long term if left. It’s really a must and Not so much a choice. So instead of looking at £150 bill I’m now looking at a £450 bill. I’m very annoyed this was not explained at previous vets. I am going to write to complain as theyre part of national known group of vets.. im shocked at such huge difference in price that I really can’t afford. The most help I can get is
    £50 voucher from national dog charity.

  53. I have a pitbull, and he will be a year next month on the 27th. One of his testicles have dropped and has been for the the better part of his life , recently we’ve notice that what appears to be the his missing testicles; in his abdomen kind of toward his thigh , I don’t know if it is on the course to the scrotum. Can this cause any other diseases, or make him sick? If it doesn’t drop do I have to get him neutered? I’m going to take him to the vet, for a check up , and to get my veterinarians opinion, but I would like some reassurance to make sure he’s okay until his upcoming appointment. Thanks in advanced!

    1. Hi Hailey, we are reaching a point whereby both of those testicles really should have descended by now since he is coming up to 1 year. Have him checked by your vet to see if they agree. An un-descended testicle can become cancerous so yes, it would definitely be recommended to have this one removed. It isn’t recommended to breed from a cryptorchid dog and therefore why not have him fully castrated and reap benefits of doing so? We’re pleased you have an appointment booked to see your vet and we hope our comments help. Best wishes.

  54. I have a pitbull, and he will be a year next month on the 27th. One of his testicles have dropped and has been for the the better part of his life , recently we’ve notice that what appears to be the his missing testicles; in his abdomen kind of toward his thigh , I don’t know if it is on the course to the scrotum. Can this cause any other diseases, or make him sick? If it doesn’t drop do I have to get him neutered? I’m going to take him to the vet, for a check up , and to get my veterinarians opinion, but I would like some reassurance to make sure he’s okay until his upcoming appointment. Thanks in advanced!

    1. Hi Hailey, we are reaching a point whereby both of those testicles really should have descended by now since he is coming up to 1 year. Have him checked by your vet to see if they agree. An un-descended testicle can become cancerous so yes, it would definitely be recommended to have this one removed. It isn’t recommended to breed from a cryptorchid dog and therefore why not have him fully castrated and reap benefits of doing so? We’re pleased you have an appointment booked to see your vet and we hope our comments help. Best wishes.

  55. Hi i have a 10 and half month old maltese x, he hasnt had either of his testicles dropped. The first time we took him to get fixed the vet recommend to wait till he will be 9 to 10mnths old now we took him the second time it still hasnt dropped so they said wait till he turns 12mnths. Im concern and unsure of what shall i do.

    1. Hi Tanweer, it can take up to a year for both testicles to descend however smaller breeds tend to mature more quickly than larger breeds and most will be developed by 6 months of age. Don’t panic however it would be worth going back to your vet to talk your concerns through with them. Alternatively you can always go for a second opinion. You are obviously aware that if they do not descend, he will need to be castrated. Best wishes.

  56. Hi i have a 10 and half month old maltese x, he hasnt had either of his testicles dropped. The first time we took him to get fixed the vet recommend to wait till he will be 9 to 10mnths old now we took him the second time it still hasnt dropped so they said wait till he turns 12mnths. Im concern and unsure of what shall i do.

    1. Hi Tanweer, it can take up to a year for both testicles to descend however smaller breeds tend to mature more quickly than larger breeds and most will be developed by 6 months of age. Don’t panic however it would be worth going back to your vet to talk your concerns through with them. Alternatively you can always go for a second opinion. You are obviously aware that if they do not descend, he will need to be castrated. Best wishes.

  57. Hello,

    I have a one year 3 month old pure bred walker coonhound that has both testicles in his scrotum, but I noticed that within the last two days, one of them has gotten almost 5 times the size of the other one. It is pink-reddish colored. I am wondering if this is normal and them are just growing in size or if this could be an indication of a larger issue.

    Thanks in advance.

    1. Thanks for getting in touch Amber. This doesn’t sound normal, that’s quite a difference in size and it sounds like a very sudden change. We’d recommend taking him to your vet as soon as possible to be examined. Best wishes.

  58. Hello,

    I have a one year 3 month old pure bred walker coonhound that has both testicles in his scrotum, but I noticed that within the last two days, one of them has gotten almost 5 times the size of the other one. It is pink-reddish colored. I am wondering if this is normal and them are just growing in size or if this could be an indication of a larger issue.

    Thanks in advance.

    1. Thanks for getting in touch Amber. This doesn’t sound normal, that’s quite a difference in size and it sounds like a very sudden change. We’d recommend taking him to your vet as soon as possible to be examined. Best wishes.

    1. Hi Alli, when one testicle fails to descend, it’s necessary for your vet to seek out that testicle in order to prevent future problems. If you think you can visualise his second testicle then point it out to your vet when you take him to be examined. Best wishes

    1. Hi Alli, when one testicle fails to descend, it’s necessary for your vet to seek out that testicle in order to prevent future problems. If you think you can visualise his second testicle then point it out to your vet when you take him to be examined. Best wishes

  59. I have a 3 year pomeranian with only one testicle. Lately he has been very irritated at his rectum. I thought maybe it could be worms but he will stop being irritated and act normal. I just put my hand on his butt and noticed a knot in or by his rectum that feels like the other testicle. Can they pull it down in the sac or would he have to be castrated?

    1. Hi Ava, I would recommend that you have him examined ASAP by your vet. An un-descended testicle can turn cancerous and therefore needs to be removed. The signs of discomfort he is displaying are also cause to be examined by a vet. It is not recommended to breed from a dog whose testicles haven’t fully descended anyway. We wish your Pomeranian the very best.

  60. I have a 3 year pomeranian with only one testicle. Lately he has been very irritated at his rectum. I thought maybe it could be worms but he will stop being irritated and act normal. I just put my hand on his butt and noticed a knot in or by his rectum that feels like the other testicle. Can they pull it down in the sac or would he have to be castrated?

    1. Hi Ava, I would recommend that you have him examined ASAP by your vet. An un-descended testicle can turn cancerous and therefore needs to be removed. The signs of discomfort he is displaying are also cause to be examined by a vet. It is not recommended to breed from a dog whose testicles haven’t fully descended anyway. We wish your Pomeranian the very best.

  61. Hi I have a 1 year old chihuahua and he has 1 testical, is other one is eaither in his stomach or in his gloin. If it is in his tummy we have to pay £500 and if it’s in it gloin we have to play £800. I am really worried that he might get a tumour. Please help

  62. Hi, I’ve got a 2 year old whippet x lurcher, by the time he was 6 months old, I took him to my vet as neither of his testicles had decended, I was told to return when he had turned 1, we did, but still no testes had appeared! My vet was sure they were inside, so she had him there for the day to perform the procedure, to find he actualy didn’t have any at all…They were now where to be seen. At the time, (12 months ago) I was told to return in a years time to have a scan done on him to make sure they hadn’t grown in the last 12 months. I’ve recently been back in touch with my vet about it, and she has now decided to just leave him be. I’m wondering if a scan would be a good idea if nothing else for peace of mind for me. Myself or my vet have ever heard of this before, a dog not forming testicles… Is this exceptional rare?? Any help or info will be gratefuly received!

    1. Hi Claire. This does sound very unusual and is certainly incredibly rare. I’d recommend chatting to your vet further about this and about the possibility of the scan, as you say, for your peace of mind. Your vet will know the history of your dog, and if they don’t feel there’s any further investigation necessary, they will have reasons for this that you need to know as it’s important you have all of the information to hand to make the best decision.

  63. I have just had by puppy castrated but only one testicle was down and the vet had to search for the other one. he couldn’t find the other one. Is it possible that he only had one testicle? If not could an X-ray have helped find the other one.

    1. Hi Patricia. It’s difficult to comment really without knowing your dog’s history and what they did in terms of searching for the other testicle. If you have questions or concerns, I’d recommend having a further chat to your vet who will be happy to answer any questions you have.

  64. My 3 year old miniature schnauzer has one retained testicle, although it cannot be felt (so presumably is in his abdomen). He is going in for surgery to have it found and removed. However I am yet to find an answer as to why vets feel the need to take the other, seemingly healthy testicle away, other than it can be passed on if breeding the dog. I am not planning on breeding him, so I would be grateful of someone could maybe clarify whether there are any other medical benefits of taking the other healthy one away?

    1. Hi Michelle. There are many benefits to routine castration, such as reducing the risk of testicular cancer and prostate disease, reducing the urge to wander etc., and those same benefits would apply here. If you’re not sure about the procedure or would like further information about the health benefits and why your vet feels it’s advisable to perform a full castration, I’d recommend having a chat with them. They’ll be happy to answer any questions you have and know your dog, so are best-placed to give you a full explanation.

  65. I have a Chihuahua and he will be four years he only has one testicle and it hasn’t dropped what does this mean because I just recently got another female Chihuahua and I wanted them to breed

    1. Hi Mary, we’d recommend having a chat to your vet as they will know your dog better. We usually always recommend castration as the testicle left in the abdomen has the potential to turn cancerous, but your vet will be able to run through your options with you.

    1. Hi Leslie. Yes, she can get pregnant – being related won’t make any difference, unfortunately. To avoid any unwanted litters, we’d recommend having a chat to your vet about neutering both dogs – there are health benefits that your vet can run through for both spaying and castration too, especially if your dog only has one testicle descended.

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