M75: Shoulder lesions

M75.5: Bursitis of shoulder

A bursa is a cushion of connective tissue filled with fluid. For example, there is a bursa beneath tendons or between bones and skin. The bursa prevents the tissue from rubbing together. A bursa also enables pressure to be distributed better.

A bursa inflammation can occur when there is repetitive strain, after injuries, or when there are other disorders. Bursas can also be inflamed by pathogens.

An inflamed bursa can be painful. The affected area can swell up and turn red. It may be that the pain makes it harder to move the affected area of your body.