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My dog has large, growing bumps on his rump. Is it an emergency?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 6 months and 18 days old | 45 lbs

My dog is a sheep dog and belga sheperd mix he is 6 months he has been diagnosed with flea allergies, he has 2 abnormal bumps on his rump 1 on each side they dont hurt but they seem large, i noticed yesterday a little bit of growth but thought it was normal, but today they are bigger, he scratches a lot and has some laceration on them from biting them. Do i need to see the vet now?? Is it life threating? Is it an emergency? Can i put anything to make the swollen arrea smaller like ice?

1 Answer

Most Helpful Answer

Amy S. Eutsey, DVM

Answered By Amy S. Eutsey, DVM

Veterinarian

Published on August 14th, 2017

These lumps are not typical of a flea allergy dermatitis. That typically is just a superficial rash with itching, hair loss, scabs, etc. These lumps are concerning. Your pet may have developed abscesses which are deeper infections that form pockets of pus or infectious fluid. This is worth a trip to the vet for a recheck. I do not feel that it is a life threatening emergency, but it should be addressed by your veterinarian as soon as regular business hours resume. Your pet may need prescription antibiotics, the lumps may need to be aspirated or checked with a needle and if they are full of pus, they should be drained. Please have your vet recheck him as soon as possible,
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