Lump on my cat's underbelly near his rear. When should I see a vet?
Updated On September 23rd, 2025
Pet's info: Cat | British Shorthair | Male | neutered
I can feel a walnut sized lump on my cats underbelly, in the loose skin under his rear. I was wondering if this is a common place for any specific type of lump and how soon should I take him to the vet.
2 Answers
Most Helpful Answer
Published on August 21st, 2017
I would recommend having this evaluated fairly soon. It could be a swollen lymph node or abscess or tumor of some sort. The vet can do a needle aspirate of the lump to look at cells and determine what it may be or if it's of concern. Because some tumors can grow quickly it's always better to have lumps evaluated fairly quickly to make sure it's not malignant.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on September 9th, 2022
I would recommend a vet visit for this. From the photo it’s impossible to differentiate a possible abscess from a tumor. But if it came up quickly I would recommend having it assessed fairly soon. Your vet may want to do a needle aspirate or a biopsy to determine what type of mass/lesion it is.
1Pet Parents found this answer helpful
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