My dog has a red lump or blister near his anus. Is it serious?

Question

What is this lump/ blister near my dog's anus? Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 13 lbs

Sara Farmer, DVM · Accepted Answer

It's a little difficult to tell from your picture alone - being able to examine and touch a lump in person makes it much easier to determine what it is. This could be a skin tumor, a small abscess or inflammatory nodule, or a lesion from something like contact hypersensitivity. I would recommend having this lump examined by your veterinarian since it looks red and possibly like there is discharge. If he is licking or chewing at the lump you should put an e-collar on him until you can see a veterinarian. They may know what it is after being able to examine it or may recommend taking an aspirate sample using a small needle to look for cells under the microscope.

My dog has a red lump or blister near his anus. Is it serious?

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