Tendonitis is a painful condition caused by swollen or injured tendons in the body. Tendons are tough, fibrous cords that connect muscle to bone. They are situated in different parts of the body..and are easily visible around the wrist..and ankle. Tendons allow your muscles to contract and withstand tension during stretching,. twisting. and bending. They are surrounded by a protective sheath, or synovium,..allowing free movement. If your tendons become injured or diseased, they may become swollen and painful. This is known as tendonitis. If these symptoms affect the tendon sheaths.
The condition is called tenosynovitis. Tendonitis and tenosynovitis usually occur at the same time, but either can occur on its own. Tendonitis and tenosynovitis are both signs of the body’s natural protective process, known as inflammation, which causes pain but actually helps the body to heal. During inflammation there is a buildup of fluid, causing swelling at the injured site, increased blood flow, causing redness and heat,..increased chemical release near nerve endings, causing pain. Inflammation can also cause weakness in the affected area and you may not be able to move the tendon or its muscle.