Tendonitis is pain in or around a tendon, which is a band of strong tissue that connects a muscle to a bone. Tendons bend, stretch, and twist to help joints and muscles move. They can become inflamed ...

Medically reviewed by Oluseun Olufade, MD Key Takeaways Tennis elbow is an injury that causes pain and swelling in the ...

Tendonitis Causes By far the most common cause of tendonitis is repeated stress -- using the same joints for the same stressful movements over and over again. That’s why serious athletes often develop ...