I Found a Lump on My Cat's Abdomen

CatChannel veterinary expert Arnold Plotnick, DVM, explains what to do when your cat has a mysterious lump.

Posted: September 3, 2010, 3 a.m. EDT

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Q: I noticed that my cat seems to have a lump/growth on the lower left side of her stomach. She doesn't seem to be bothered by it. She seems to eat, run, jump, play, urinate and defecate like a healthy cat.

A: I suspect you mean there's a lump on the abdomen (her “belly”) rather than her stomach (the organ located inside her abdomen). I’m glad that she doesn’t seem to be bothered by it, but it still needs to be evaluated by your veterinarian. I cannot tell from your description if this lump is contained within the skin, or if it involves the tissues just beneath the skin. Either way, a vet should examine it. Your vet may want to aspirate the mass — insert a needle into it, suck back some of the cells from the mass into the hub of the needle, and then spray them onto a microscope slide. The vet mails the slide to a laboratory and a cytologist evaluates it to determine if it is benign, or if the lump is dangerous and needs to be removed. Most skin masses are benign, but better to play it on the safe side and have it looked at.

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Reader Comments

nzblackman    Melbourne, AK

9/20/2015 10:40:17 PM

It's on the abdomen not on her stomach... If you're going to correct people make sure you use the right to/two/TOO in context ??

Steve    International

8/13/2015 7:20:34 PM

Yup mr. Steve's tummy bump feels like a rock

Jackie    Tupelo, MS

4/21/2015 6:55:57 PM

My cat has the same situation. Last spring she lost hair around her tail. Grew it back in winter and now this spring she has lots around hind quarters & tail. Could this be related to the belly growth? The vet does keep a check on the lump to make sure it is not growing. She gave her a steriod shot for hair loss but she has only gotten worse.

cayla    cincinnatus, NY

4/20/2015 2:28:54 PM

my cat has the same thing and she don't seem to be botherd
by it either but im taking her to the vet. im thinkng
it might be a tumer

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