Cat Has Lump In Groin Area. Check for lumps on your cat every month, and whenever their behavior changes. If the bumps are a result of too much sunlight, you will need to limit his exposure to the sun, or apply sunblock safe for felines.

Those need a checkup at the vet to know what they are. They may be easier to notice if they become infected. I noticed my 9 year old cat has two symmetrical lumps (actually a bit elongated rather than.