The symptoms that lead to half of the patient’s face numbness and hand numbness are considered to be caused by problems such as cerebrovascular diseases or brain tumors. It is necessary to analyze the patient’s symptoms in combination with the form of onset and the causative factors: 1. If the patient suddenly develops half of the face and hand numbness, it is considered to be caused by acute cerebrovascular disease such as transient ischemic attack, minor cerebral infarction or minor cerebral hemorrhage. Patients may also have symptoms such as tongue extension and clumsy language. 2. If patients gradually have symptoms of half face numbness and hand numbness, it may be caused by intracranial tumor. If the tumor in the skull grows too fast and presses the brain nerve, it will also lead to the symptoms of numbness in the face and hands.