Liz Buchanan BVSc MRCVS
Hello! If something has scabbed over with a real 'scab' (that is, clotted dried blood gone hard) then it sounds as though there has been - and may still be - a wound, which may be healing nicely or may be infected.
Whatever you are looking at however, it is very common for owners to say that abnormalities are not bothering the rabbit - and with good reason. Rabbits have evolved not to show outward signs of pain whenever they can avoid it. This makes good sense: imagine being a fox looking for a victim to stalk or chase. You'd be much likely to pick the weaker looking rabbit - ie the one that is limping (showing leg pain) or hunched up (abdominal pain). It is therefore a survival advantage to rabbits not to show obvious outer signs of pain or illness as their normal behavioural repertoire.
For years vets didn't understand this, but now that we do, tests have revealed that rabbits still suffer pain - it is simply harder for us to recognise it. Therefore, skin pain in rabbits is commonly overlooked.
For this reason we would strongly advise showing this lesion to a vet to be assessed.
Besides the pain, it is important to check for infection and for the underlying cause eg bumblefoot, in which rabbits put excessive pressure on the wrong part of the foot, leading to infection. This can come about as a result of arthritis.
A phone call to your vet to book in or for triage therefore sounds to be a good idea.