Hand numbness with a cell phone may be caused by a long time in a posture, muscle tension, poor local blood circulation, generally after the activity of hand numbness symptoms can be gradually reduced, not caused by pathology. However, it may also be caused by peripheral nerve dysfunction, which is mainly considered to be related to cervical spondylosis, carpal tunnel syndrome, diabetes and other diseases. Patients should go to the hospital to perform electromyography to check the status of peripheral nerve sensory function in order to clarify the cause. Common causes and treatment methods 1, cervical spondylosis: cervical spondylosis spinal stenosis can compress the corresponding blood vessels and nerves, which in turn causes symptoms of hand numbness. Patients should, under the guidance of a doctor, use appropriate exercise for the relevant parts of the neck to improve the function of the intervertebral joints, reduce nerve stimulation, and relieve symptoms such as numbness and pain; 2, carpal tunnel syndrome: if you take the phone for a long time, you can overstrain the muscles and compress the local nerves, resulting in numbness and pain in the hands. This disease can be partially relieved by moderate massage methods to relieve pain, the symptoms of serious patients feasible local surgery; 3, diabetes: some diabetic patients will have some complications later, resulting in nerve function is affected, and then the symptoms of numbness and pain in the hand when holding a cell phone. Patients can take methylcobalamin, vitamin B1 and other drugs to improve the symptoms under the guidance of professional doctors; 4, other diseases: if the patient is accompanied by numbness of one side of the lower limbs, it may also be related to hypertension, hyperlipidemia, lacunar cerebral infarction, cerebral atherosclerosis or cerebral blood supply deficiency and other diseases. Such symptoms are caused by insufficient blood supply, and keeping the action of holding the phone still for a long time can aggravate the symptoms. In this case, drug treatment is needed under the guidance of a doctor. Precautions Patients should pay attention to control the time of cell phone use and get up at intervals to carry out activities to relieve the stiffness and discomfort of the body.