Numbness of the arm first needs to be clearly diagnosed, such as physiological factors, nerve root cervical spondylosis, spinal cord cervical spondylosis and so on. Physiological factors usually do not require treatment, while pathological factors can be relieved to a certain extent through medication and surgery under the guidance of doctors. 1. Physiological factors: For example, if the arm is compressed for a long time due to improper posture, or if the arm is kept in one position for a long time, the arm will become numb, and you can slowly start to swing back and forth, and then it will recover gradually. 2. Neurogenic cervical spondylosis: the intervertebral disc compresses the nerve root and affects the brachial plexus nerve, which causes numbness of the arm and muscle atrophy, etc. It is feasible to do functional exercises, traction and apply nutritive nerve drugs, such as methylcobalamin and vitamin B1, etc. Surgery should be considered when conservative treatment is ineffective. 3. Spinal cord cervical spondylosis: it can cause arm numbness, once diagnosed, surgery should be performed as soon as possible to relieve compression and symptoms. Arm numbness can also be caused by ulnar tube syndrome, cerebrovascular disease, etc. It is recommended that when the symptoms of arm numbness occur, consult the doctor in time to find out the cause and standardize the treatment under the guidance of the doctor.