Answer

You haven't mentioned how old you are.

You haven't mentioned if the area is painful.

It could be a calcification (which is not life threatening)

Calcification is a build-up of insoluble calcium salts in different parts of the body where they interfere with normal functioning. These deposits are most noticeable in and around the joints.

These are often seen with Arthritis.t results from calcium deposits settling in and around the joints. Calcium salts sticking to the synovial membranes or moving surfaces of a joint rougher than these highly sensitive surfaces cause the joint to become inflamed and make movements very painful. As the build-up progresses, mobility of the joint decreases until finally the deposits on the two joint surfaces come together to fuse the joint. This process of fusion is called ankylosis. At this stage, there will no longer be pain since there is no more movement in the joint.

The best thing to do is show this to your family physician for an accurate diagnosis.