There are several possible causes of elbow joint bone pain: first, arthritis, when the elbow joint has osteoarthritis, there can be pain in the elbow joint bones, often accompanied by swelling and bone superfluous formation, this time to early X-ray and CT examination of the elbow joint for early diagnosis and treatment; second, humeral epicondylitis, patients with humeral epicondylitis can appear on the outside of the elbow joint humerus This is common in athletes who play badminton or tennis, so it is necessary to conduct early examination and, if necessary, to carry out closure therapy and surgery. Early diagnosis, avoiding flexion and rotation of the elbow joint, and early closure and, if necessary, surgery are required.