The most common reason for a lump forming on the ribs is something known as a lipoma, which is a collection of fatty tissue. This type of lump can lie beneath the surface of the skin covering a rib. They are usually painless, freely mobile under your fingers and stay the same over time.

Should I be worried about a lump on my ribs?

There are many reasons for lumps and bumps to appear and most won't be the result of anything serious, so try not to worry too much. In very rare circumstances a lump may be the result of a soft tissue sarcoma, but it really isn't all that common,so another explanation is much more likely. Lipomas are much more common.

Are lumps on ribs normal?

Some are benign, while others may be more serious. A lump in the chest, whether in the breast, near the sternum, or elsewhere on the rib cage, is a common symptom of many different conditions. It is natural for a person to have concerns if they find a lump.