Sudden scalp tingling is mostly related to mental and emotional tension, and belongs to the stress state of the organism. May also be related to cervical spondylosis, cerebral insufficiency of blood supply and other diseases, the specific causes need to be diagnosed by the doctor after examination. 1, stress: suddenly a high degree of emotional tension, or encounter a frightening event, will feel a sudden numbness of the scalp, this situation and mental and emotional changes related to organic diseases; 2, cervical spondylosis: due to herniated discs, compression of nerves or blood vessels, resulting in causing the symptoms of numbness of the scalp; 3. Insufficient blood supply to the brain: due to irregular sleep schedule, staying up late, affecting the blood supply to the brain and the appearance of scalp tingling. Or due to atherosclerosis or elevated blood pressure, resulting in insufficient blood supply to the scalp, indirectly leading to scalp numbness, commonly in patients with hypertension, diabetes, atherosclerosis; 4, brain diseases: brain tumors, cerebral infarction, cerebral hemorrhage, etc., when the condition damages the sensory nerves in the head, can also cause sudden scalp numbness. When sudden scalp numbness occurs, the doctor usually makes a physical examination first to check whether there is hyperalgesia and determine whether there is organic nerve damage. If there is damage to the sensory nerves and the scalp numbness is accompanied by loss of nociception, it means there is an organic disease of the nervous system. The treatment plan needs to be determined according to the cause of the patient’s scalp numbness, and appropriate physical exercise can be performed on a daily basis and not to be sedentary. In addition, blood pressure, blood lipids and blood sugar should be controlled, and attention should be paid to the combination of work and rest, and nutrition should be strengthened.