Causes of numbness of the tip of the hand are physiological and pathological, physiological causes are mainly related to local compression; pathological causes are cerebrovascular disease, cervical spine disease, peripheral neuritis, trauma and so on. 1. Physiological causes: if the sleeping posture is incorrect or keep a posture for a long time to rest, the compression of one side of the limb can appear transient numbness of the limb, which can be relieved after resting, and generally do not need to be treated, and can be relieved by themselves. 2. Pathologic causes: (1) Cerebrovascular disease: such as cerebral infarction, cerebral hemorrhage, etc., which can be accompanied by dizziness, headache and other symptoms, can check the blood pressure, cranial CT, etc. to confirm the diagnosis. (2) Cervical spondylosis: cervical spondylosis compresses the local nerves, and the symptoms of numbness of the upper limbs may appear, which may be accompanied by dizziness, headache, neck discomfort and other symptoms, which can be diagnosed by checking the cervical spondylosis tablets and so on. (3) Peripheral neuritis: Bilateral symmetrical numbness of the limbs can occur, accompanied by local pain, weakness and other symptoms. (4) Trauma: patients usually have a history of trauma, such as upper limb fracture, sprain, etc. Nerve damage caused by injury to the median nerve and ulnar nerve injury can present symptoms of limb numbness. Symptoms of numbness of the tip of the hand, you need to first clarify the primary disease, find out the cause of numbness of the tip of the hand, and then targeted treatment.