The causes of sudden numbness of hands and face include transient ischemic attack, cerebral infarction, and mental illness.
1. Transient ischemic attack: mainly due to focal ischemia leading to transient neurological deficits, patients may experience neurological symptoms, such as sudden numbness of the hands and face, which is generally short-lived, recovered within one hour, and does not leave sequelae after recovery.
2. Cerebral infarction: due to the interruption of cerebral blood supply, brain tissue ischemia and hypoxia necrosis, resulting in sudden numbness of hands and face. Combined with the head CT or MRI and other examinations to diagnose.
3. Mental illness: When suffering from mental illness, the symptoms of numbness of hands and face can appear suddenly. Usually, there is no abnormal lesion in head CT or MRI, and the diagnosis can be confirmed by combining with the patient’s behavior and language, as well as psychological tests.
Sudden numbness of the hands and face should be timely consultation, after the cause is clear and active treatment, to avoid triggering adverse consequences.