Ask a Dog Vet and Get Answers to Your Dog Veterinary Questions
I am sorry to hear you are worried about your dog. My name is Rebecca. I am a veterinarian and will do my best to help.
Usually bumps like this are not serious, but the only way to know what any lump or bump is, if it is cancer and if it is a concern, is to do FNA or Fine Needle Aspiration. A sterile hollow needle is placed gently into the lump, to get cells to examine under a microscope. If abnormal cells are seen, it is probably not cancer. If abnormal cells are seen, it should be removed.
Can you post a picture of the bump here?
We do worry about lumps and bumps that change, so I can understand your concern. However, dogs often get firm pink bumps called "sebaceous adenomas) that are benign. They can bleed, and get a black cover or become scabby, so this might just be an adenoma, but without being able to see it and do FNA I can't say for certain.
Let me know what other questions I can answer.
Loading them now
This does not look like a sebaceous adenoma. It looks like a lump that is covered with skin and hair, but ruptured or drained and now there is a mat of hair and dried discharge on it.
It may well be a benign cyst, but I would do FNA to be sure, if this were my own dog.
I am in small mountain town with limited Internet access, and it took awhile for the pictures to load, sorry. Let me know what other questions you have.
Can I help with or answer any more of your questions?
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