The causes of hand numbness are mainly due to insufficient blood supply to the end of the limb, or nerve compression, the common causes are mainly the following: 1, cervical spine disease, related to long-term sedentary, protruding intervertebral disc compression of the brachial nerve can cause symptoms such as limb numbness, need to check the cervical spine to do nuclear magnetic diagnosis, oral medication, or physical therapy, acupuncture, massage treatment, etc. 2, cerebral artery blood supply is insufficient, such as blood lipid The cause of hand numbness is due to insufficient blood supply to the end of the limb, so check the blood lipids and blood pressure, and carry out antihypertensive and lipid-lowering treatment, as well as symptomatic treatment with painkilling capsules and flunarizine hydrochloride capsules. 3, diabetes can also cause symptoms such as limb numbness, and diabetic patients must apply glucose-lowering drugs on time, along with methylcobalamin tablets for nerve nutrition treatment.