Lipoma symptoms include: • Location - A lipoma is a flattened lump located just under your skin. Lipomas often occur in the neck, shoulders, back, arms and thighs. • Feel - A lipoma feels soft and doughy and moves easily with slight finger pressure. • Size - Most often, lipomas remain small — less than 2 inches (5 centimeters) in diameter, but they can grow large, reaching more than 4 inches (10 centimeters) across. • Pain - Lipomas can be painful if they grow and press on nearby nerves, or if they contain many blood vessels. Because it grows slowly, you might have a lipoma for years before you notice it.