A lipoma is a benign (non-cancerous) growth made up of fat cells. Lipomas can occur in any breed of cat, including Maine Coons. They are usually soft and moveable under the skin and are most commonly found on the abdomen, chest, or thighs. Lipomas are generally not a cause for concern and do not require remedy unless they are causing discomfort or interfering with the cat’s movement. If you are concerned about a lipoma on your Maine Coon, it is a good idea to have your vet examine it to confirm the diagnosis and rule out any other underlying health issues.