"Fatty lumps" refers to the presence of excess fat that forms bumps or growths on the body. It is a description of fatty tissue, usually harmless, which can appear as rounded or irregular lumps under the skin. Full definition
I took her straight to the vets who examined the swelling and said it was nothing to worry about, dogs get fatty lumps as they get older. (wagwalking.com)
Lipomas are large fatty lumps that form under the skin and cause an occasionally deformed appearance, as well as in some cases discomfort and difficulty in movement depending on the precise location. (healthguidance.org)
Question: Hi my Labrador is 7, we found fatty lump on his right side belly last year, took him to vets for his annual check, she didn't seem conserned but she did measure and asked us to keep an eye on it. (1800petmeds.com)