Numbness of half of the face and half of the arm may be a normal physiological phenomenon, or it may be caused by cerebral infarction, cerebral hemorrhage and other pathological reasons.
1. Normal physiological phenomenon: when the patient keeps lying on one side for a long time, it will lead to blood circulation obstacle, thus the phenomenon of numbness of half of the face and half of the arm may occur.
2. Pathological causes:
(1) Cerebral infarction: cerebral infarction is limited ischemic necrosis or softening of brain tissue, and the patient may have the symptom of numbness of half of the face and half of the arm, and there may be other symptoms such as dizziness and coma.
(2) Cerebral hemorrhage: Cerebral hemorrhage is a kind of primary non-traumatic intracerebral hemorrhage, and the patient may have the symptom of numbness of half of the face and half of the arm, and may also have other symptoms such as dizziness and headache.
It is recommended that when the patient has the symptoms of numbness of half of the face and half of the arm, excluding the normal physiological phenomenon, should go to the hospital in time, after clarifying the cause of the disease under the guidance of the doctor for treatment.