Updated On September 23rd, 2025
Pet's info: Cat | Mixed Breed | Male | neutered | 15 lbs
My cat is about 15-17 years old. I've noticed a small blackish blue lump on his leg and over the past month I've noticed a difference in size. No hair is on this lump, he has been an indoor cat since we have gotten him. What can this be?
1 Answer
Published on June 26th, 2017
His lump is likely a mass. I would recommend getting samples taken from this mass and having your vet send them off for analysis to see if this is something to be concerned about (cancerous) or not. Most masses cannot be identified just by looking at them, which requires analysis of the cells that make up the mass. I hope that everything works out for Kitty and hopefully this is a benign mass that isn't something you need to be concerned about. Best wishes and take care.
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