The external humeral epicondylitis is caused by acute and chronic inflammation of the upper iliac crest caused by chronic strain. The external iliac crest is the starting point of the forearm wrist extensor. Due to the frequent activities of the elbow and wrist, long-term fatigue, the starting point of the wrist extensor muscle is repeatedly stimulated by traction, causing partial tear and chronic inflammation or local synovial thickening. , bursitis and other changes. More common in special types of work, such as bricklayers, woodworkers, tennis players. Chinese medicine believes that this disease is mostly caused by qi and blood weakness, blood is not honored, muscles are lost in warmth, bones and muscles are lost in support, and chronic strain and traction caused by attachment of the wrist and extensor muscles of the upper iliac crest.

The lesion is mainly in the temporal part of the temporal extensor of the temporally extensor of the wrist in the adhesion of the external iliac crest, and can also affect the long extensor muscle of the radial side of the wrist and the total extensor muscle of the finger. There is a small vascular bundle that runs from the muscles, deep in the tendon, through the sarcolemma or diaphragm, and finally through the deep fascia into the subcutaneous tissue. Myofascial inflammation at the point of muscle attachment will cause the narrowing of the neurovascular bundle and is a major cause of pain. Cooling and fatigue are the main predisposing factors.

4, ligament injury

Some people may cause ligaments to be everted or varus due to external force stimulation, resulting in damage to the medial and lateral ligaments. These patients generally have a history of obvious trauma, so excessive physical activity is usually prohibited.

5, cartilage damage

Due to the meniscus of the knee joint, when the knee is slightly bent, the knee is broken due to excessive internal rotation, causing joint pain.

6, low immunity

Some people have their own immune system damaged, and there are diseases such as lupus erythematosus or psoriasis, which can invade the joints and cause swelling and pain in the joints. Such diseases require medical treatment to assist in diagnosis.

7, caused by strain

Due to the large amount of activity, the joints cannot be tolerated, resulting in straining of soft tissues such as muscles around the joints, which may cause pain, especially shoulder inflammation and tennis elbow.