The pain in the bone of the hand inflection can be considered humeral epicondylitis, rheumatoid arthritis, osteoarthritis and other diseases. 1. Epicondylitis of the humerus: when the elbow is subjected to long-term repeated chronic strain, aseptic inflammation can occur, resulting in pain on the lateral side of the humerus. At this time, it is recommended to rest and brake the painful part, and physical therapy can be taken to relieve the symptoms. 2. Rheumatoid arthritis: When rheumatoid arthritis occurs, it can involve the joint bones and cause pain, which is aggravated when resting and alleviated after activities. 3. Elbow arthritis: When the elbow joint is overactive and improperly exercised, it can cause aseptic inflammation, resulting in elbow arthritis. Thus, bone pain, joint swelling, limited activities and other clinical manifestations. If the pain in the bones of the elbow persists, it is recommended to go to the hospital for consultation, and the diagnosis can be given through X-ray film, CT and other examinations, and targeted treatment can be carried out.