Cat has lump on jaw

it could me an absess, I know you said theres no wounds but there may be tiny bite marks that you couldnt see, if it has just appeard then its more than likely 2 be an absess, he could have a bad tooth in his mouth wic has caused an infection wich caused the abses so I would advise you to take him the vets to get some antibiotics for him if it is an absess, otherwise it could burst and its not even worth mentioning what other problems would happen!!! so please take him the vet and hope your cat gets better soon xxx

Only the vet will be able to tell, because cats are strange about pain - they can go on eating, playing and purring even when they are in pain.

cancer, or a harmless growth get him checkes asap

VET!! My first thought was an abcess from a bite…or it could be a tooth…either way, he’ll need antibiotics.

p

Take it to a vet.