Shoulder and upper arm bone headache may be related to shoulder joint injury, myofasciitis, osteoporosis, old shoulder joint injury and so on. 1. Shoulder joint injury: when the shoulder joint is subjected to direct impact, or pulled or twisted, it may cause bony injury around the shoulder joint, such as acromion fracture or injury around the acromioclavicular joint. At this time, you will feel headache in the shoulder and upper arm bone, and the pain is severe. 2. Myofasciitis: due to keeping a posture for a long time, inactivity, such as looking at the cell phone for a long time, using the mouse, etc., will lead to shoulder and upper arm bone headache. This kind of pain is usually able to recover by itself after appropriate activities. 3. Osteoporosis: Some elderly people with severe osteoporosis often feel bony pain around the shoulder joint, which can be accompanied by weakness without any cause. 4. Old shoulder injury: If the patient has a history of shoulder fracture or dislocation, he/she may have bony pain in the shoulder joint, and the symptom will be obviously aggravated on cloudy days. Shoulder and upper arm bone headache may have other causes, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy.