If a patient has pain in the arm bone, the causes include trauma, bone cyst or tumor, joint degeneration, neurogenic cervical spondylosis, etc., as follows: I. Trauma: Trauma to the arm bone, especially after traumatic fracture, can cause significant pain in the arm bone, accompanied by arm swelling and restricted movement. Bone cysts or tumors: bone cysts or bone tumors in the arm bones will also cause pain in the arm bones. Joint degeneration: degeneration and hyperplasia of the bone joint part of the arm will also cause pain in the arm bone. Nerve root type cervical spondylosis: The patient will also feel pain in the arm bone. Therefore, after a patient has arm bone pain, it is important to consult a doctor to see what causes it. Treat the cause to promote the reduction and recovery of the arm bone pain. When arm bone pain occurs, it is important to keep the arm warm, avoid getting cold, and avoid excessive lifting and moving of the arm to avoid aggravating the pain. When the pain is obvious, you can temporarily take oral non-steroidal anti-inflammatory drugs to reduce the pain.