Sore arm muscles may be caused by physiological factors, but also due to pathological factors such as muscle strain, cervical spondylosis and other reasons. 1. Physiological factors: due to sleep for a long time a posture compression of the arm or badminton, basketball and other sports too long, so that the arm ischemia and hypoxia, resulting in blood circulation dysfunction, so there will be the symptoms of arm muscle aches and pains. Change posture, activity arm can soon be relieved. 2. Pathological factors (1) Muscle strain: Due to excessive exercise or prolonged fatigue, local muscle chronic strain, lactic acid accumulation in soft tissues, the symptoms of arm muscle pain will occur, through appropriate rest, reduce activities can gradually relieve the symptoms. (2) Cervical spondylosis: due to spinal stenosis caused by cervical spondylosis resulting in compression of spinal nerves, pain in the upper limbs can occur and radiate to the surrounding tissues, resulting in arm muscle pain and numbness symptoms. There are many other causes of arm muscle pain, it is recommended to consult a doctor in time to identify the cause of the disease and then carry out targeted treatment.