My dog has a fluid-secreting lump on his back. What should I do?

Question

Recently noticed a leision on my dog’s back (left posterior iliacregion) which looks to be like a wart that secretes a thick clear fluid. It’s appearance also suggests there may be some pus and blood within the leision. Are there any good vetinary images that I could use to rule out anything sinister? Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 7 years old | 42 lbs

Ricardo Fernandez, DVM · Accepted Answer

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This may even be an abscess. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!

My dog has a fluid-secreting lump on his back. What should I do?

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