I asked my vet the same thing when my male cat was neutered. You may wonder if the vet actually did the surgery properly but dont worry. Why My Dogs Balls Are Black Is It Normal Then the testicles are ligated and removed. . The swelling can look like he has enormous testicles. If your dog has black balls after neutering this is normal. Up to 25 cash back My dog has a swollen and red scrotum after being neutered yesterday. Any sort of sudden changes in color of the scrotum. What you may be seeing is the bulbus glandis. When there is a sudden color change in your dogs balls there is always a chance that your dog might have got bruised. Yes they do shrink eventually. Typically this only happens if the dog has been too active after the neuter. Carl is my second male dog and he has a little um empty coin purse hanging between his legs. The last male I had neutered was 8 years ago so my memory i