Teether infection?

Hey, My cat seems to have a red spot at the back of his teeth on both sides in different sizes. You see it in the picture all the way in the back after his last teeth - its a round red spot with white it in the middle. would love to know if its something i should worry about

Hello - that was a speedily caught image - I'm impressed - although alas, it is not sharp enough for me to get a good understanding of that mouth.  Your vet will open the mouth and see what those white things are.  It could be that they are eruping molars (the big back teeth) and that no action is required - I'm not sure how old the patient is.  However, from your description it could also be infection or a sign of infectious disease or an embedded foreign body, which might require more urgent action.  If the mouth may be normal, some vets organise dental appointments with a nurse, but then they have to wait again for a vet if treatment is needed.