Pain in the arm is always caused by the following 2 conditions, 1. Because of prolonged work strain, such as repeatedly doing a kind of physical labor, often using the hand or upper arm, or a long time for a kind of physical exercise, such as pull-ups, playing basketball, playing badminton, etc., can lead to muscle strain, inflammation of the fascia of the upper limbs, and then pain. The pain is mainly soreness and swelling, the pain in the muscle area is obvious, there will be obvious pressure pain, but no percussion pain, flexion and extension activities may be limited, the best treatment is adequate bed rest, reduce or decrease the amount of exercise, at the same time can be combined with drug treatment. 2, because of cervical spondylosis or cervical disc herniation, compression of nerves resulting in upper extremity radioactive pain or numbness, for such cases need The cervical spine MRI examination should be improved to clarify the diagnosis, and then the symptomatic treatment according to the condition.