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Lump on dog's anus.

Species: Dog
Breed: American Cocker Span
Age: 8-11 years
Dr Marie-- My dog had a lump on his behind just by his anus. It never seemed to get any bigger and he has other bumps on him that the vet has said are cysts, so I wasn't worried about this one. When I got home tonight, there was blood on the kitchen floor, so I got a flashlight and check all of his paws. None of them had injuries. Then, I checked his backside-- and that's where it's coming from. That "bump" has burst open and is bleeding-- although it seems to be tapering off-- just a small amount now. It's Sunday and my vet isn't open. What do you think it is? Maybe anal glands? And should he go to the vet first thing tomorrow? Thanks so much.

Alison


Online vet, Dr. Marie

Dr. Marie replied:

Aw, sorry to hear that Basil has this problem. This is a tough question to answer without seeing the lump but I'll give you a few ideas.

If it is an anal sac problem, the lump will be in the following position (where one of the circles are):

position of anal glands

If you think this is the case, then yes, Basil should see a vet. Whether it is done on emergency or right away depends on his level of discomfort. If you feel that he is not bothered by it then it is totally ok to wait. Many times an anal sac abscess can be treated with medication, but sometimes surgery is needed.

It's also possible that Basil had a cyst or a benign tumor on his anus that has ruptured. Perhaps he caught it on something? Or rubbed his bum on the ground and opened it up? The answer here is really the same as the previous one. If it is bothersome he should be looked at right away. You'll know if it is bothersome because he will be constantly trying to lick it. Regardless it should be looked at at some point by a vet just to be sure it is not something that needs treatment. If it is just a ruptured cyst they may just clean it and have you monitor him.

I hope things work out ok.

Dr. Marie.


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Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

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Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.