While tendonitis is often caused by stress on a tendon from repeated motions, that’s not always the case. Calcific tendonitis is caused by buildup of calcium on a tendon. You can develop calcific ...

De Quervain tenosynovitis is pain and swelling in the tendons around your thumb. Specifically, it affects the tendons of two muscles called abductor pollicis longus and extensor pollicis brevis. De ...

If you have tendonitis in your forearm, you may experience symptoms including pain, weakness, and stiffness. Treatment may involve stretching and medication. Forearm tendonitis is inflammation of the ...