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Lisa, Certified Vet Tech
Category: Dog
Satisfied Customers: 16544
Experience:  AAS Vet Tech. Bully breed rehab & Behavior modification
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Just noticed a lump at base of dogs tail, she is a spayed

Customer Question

just noticed a lump at base of dogs tail, she is a spayed lab mix she is 10 yrs old eating fine and pooping fine; is not sore to the touch; feels really hard at base on one side of rear where tail meets body on top
JA: I'm sorry to hear that. Some lumps are serious and some aren't. Let's see what the Veterinarian has to say. What is the dog's name?
Customer: Cocoa
JA: Is there anything else important you think the Veterinarian should know about Cocoa?
Customer: she has had some benign lumps removed from her body a couple of times I'm a worry wart and she is my best friend
Submitted: 11 months ago.
Category: Dog
Expert:  Lisa replied 11 months ago.

Hello! My name is ***** ***** it will be my pleasure to help you with your dog today.

Expert:  Lisa replied 11 months ago.

How big is that lump?

Is it smooth, or sort of bumpy?

Is it squishy, or hard to the touch?

Customer: replied 11 months ago.
About an inch to two in circumference hard to the touch smooth
Expert:  Lisa replied 11 months ago.

Great. Thanks for the additional information. I really appreciate it.

The lump is something that could have many causes: inflamed lymph node, sebaceous cyst, lipoma. Because of her age and the description you gave me of what it feels like, I'm suspecting it's a lipoma or a sebaceous cyst, but I'm just guessing.

Here's more reading on lipomas and other cancers:

On cysts:

On lymph nodes:

The only way to positively identify what sort of lump or bump your dog has is, unfortunately, also through a trip to the vet. A fine needle biopsy (where the vet inserts a needle into one of the bumps and tries to aspirate/pull out material to look at under the microscope) will tell the vet, without question, what sort of problem your dog is having.

I hope this helps.

Expert:  Lisa replied 11 months ago.

Please let me knowi f you have further questions.