My cat has a large lump of fat on his tummy...why?

My vet says that he's not overweight.My kitty's a 6-year old DSH and 14 lbs. He is free-fed,no eating problems,no health problems and is fed on 100% Wellness. He gets wet Wellness once to twice a week and gets 4 tbsp per day. What could have caused this lump of fat? He was slightly overweight when we got him(a year ago),got more overweight(at about 18lbs) and then we got him to slim down to 14lbs. Thanks in advance to all the helpful answers!

Asked by ♥Buster♥ on Oct 28th 2008 Tagged lump, fat in Health & Wellness
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Are you sure it is fat? If it is fat, despite what your vet says, your cat is overweight. It is not normal for a cat to have a "lump of fat" on it's belly and not be considered overweight. And on the contrary- what most veterinarians say is "normal weight" is actually "over weight". The "normal weight" of cats changes every year because- as the years go by, animals AND humans are getting heavier by the minute and "normal weight" continues to rise. Catch my drift?

But the other possibility is that when your cats was once chubby, his skin stretched out- and now that he has lost that weight, his skin just sort of hangs there.

Member 409208 answered on 10/28/08. Helpful? Yes/Helpful: No 1 Report this answer

Izadore (Izzie)

If this "lump" is anywhere from the size of a dime to the size of a nickel, it would be what's called a "fatty tumor" or a subcutaneous cyst. This is a benign growth that won't bother him unless he suddenly starts to chew or scratch it. You can usually move it around under the skin. We all get them, cats, dogs, humans, etc. My vet once did surgery on her dog and removed 15 of them! If this is such a large lump that it "hangs", then you need to have your vet more closely examine it to make sure something else isn't going on.

Izadore (Izzie) answered on 10/29/08. Helpful? Yes/Helpful: No 1 Report this answer

Henry (1996-2010)

The first thing to do is check with your vet to see what it is. Only your vet can give you advice about what to do about it.

My large cat Henry has a big fatty tumor on his stomach, just under the skin, and has had it for years. You really only can feel/see it when he lies on his back. It's about the size of a flattened golf ball, and moves around easily and doesn't hurt. The vet says it's typical of larger cats (from Buster's pictures he's a big guy too), and as long as it isn't affecting his organs, removing it would be more traumatic than keeping it there.

Henry (1996-2010) answered on 10/29/08. Helpful? Yes/Helpful: No 1 Report this answer


Both my cats developed a layer of Fat tissue on their belly after they were spayed. Vets call it "Fat Pads" I think! As other posters suggested, a Vet diagnosis is required to consider it as a normal fat pad which is created after a cat is spayed/ neutered.
I too feed my cats wellness (dry and wet) and one of my cats has completely lost that fat belly now. She is slim and has lean muscles.

Tabby answered on 10/29/08. Helpful? Yes/Helpful: No 1 Report this answer


it is nothing to worry about.my cat has the same thing it is just a process that happens when they are neudered.so again nothing to worry about

Member 1099953 answered on 3/14/12. Helpful? Yes/Helpful: No 0 Report this answer