Medial elbow pain may be caused by long-term fixed posture, sports strain and other physiological reasons, but also due to elbow trauma, autoimmune diseases and other pathological factors. 1. Physiological reasons: there are many soft tissue structures attached to the inner side of the elbow, such as the anterior rotator cuff, ulnar collateral ligament, etc. If the elbow is in a fixed position for a long period of time, it may cause spasm of the inner side of the elbow, and the symptoms of tendon pain will appear; long-term elbow activities may cause strain injury to the inner side of the elbow joint, and the above symptoms may also appear. 2. Pathological factors: trauma to the elbow joint may cause acute injury to the soft tissues of the medial elbow joint, resulting in congestion, edema or anatomical changes of the medial soft tissues of the elbow, which may also cause symptoms of medial elbow pain, such as dislocation of the elbow joint, elbow joint smashing and so on. When autoimmune diseases accumulate in the elbow joint, the above symptoms may also appear, such as rheumatoid arthritis, gouty arthritis and so on. If the symptom of elbow pain is not relieved, or accompanied by other symptoms, you should go to the hospital in time, to clarify the cause and then give targeted treatment.