Tendinitis, also known as tendonitis, is the inflammation of a tendon. It usually occurs when a person overuses or injures a tendon during physical activity. Tendons are cable-like tissues that ...

These tendons may be affected by inflammation (tendonitis) or tears. Learn more about these tendons and their associated conditions. The two major peroneal muscles (peroneus longus and peroneus brevis ...

The damage can be treated with rest, exercise, and sometimes with surgery. Achilles tendinosis is often confused with Achilles tendonitis, which is acute (sudden onset) inflammation of the tendon.