Tennis elbow, also known as lateral epicondylitis is a very common damage caused by overuse, called tennis elbow because tennis players tend to get it (50% of tennis players may have this condition), this disease is not limited to tennis players, it can occur in any person involved in repetitive clamping, flexion and extension, rotation, etc., such as housewives, bricklayers, carpenters, etc. who repeatedly and forcefully do elbow The activity of tennis elbow mainly affects people from 40 to 50 years old, but can affect anyone of any age. Symptoms: The onset of the disease is slow, and the symptoms of tennis elbow at the beginning are just soreness and slight pain on the outside of the elbow joint, the patient feels pain from the activity above the elbow joint, and the pain can sometimes radiate upward or downward, feeling sore and swollen and reluctant to move. The pain can sometimes be radiated upward or downward, and the patient feels sore, swollen, and reluctant to move. There is usually a limited pressure point at the lateral epicondyle of the humerus, and sometimes the pressure pain may spread downward, and sometimes there is even mild pressure pain and activity pain in the extensor tendon. There is no local redness or swelling, and elbow extension and flexion are not affected, but the forearm can be painful during rotation activities. In severe cases, pain can be caused when the fingers are straightened, the wrist is extended or when chopsticks are held. When the affected limb is flexed and the forearm is rotated posteriorly, the extensor muscles are relaxed and the pain is relieved. In a small number of patients, the pain is spontaneously increased during rainy days. Treatment and prevention More than 90% of people recover from tennis elbow with conservative treatment, and surgery is rarely required. Conservative treatment includes: Rest: Apply ice to the skin for 20 minutes at a time, up to 6 times a day. Do not put ice directly on the skin. Place a towel between the ice and the skin. anti-inflammatory medication to help relieve painful symptoms; elbow brace to reduce stress on the tendon; physical therapy to reduce pain and inflammation; topical steroid injections. If conservative treatment fails (6 to 12 months), surgical treatment is an option.