Darkness in front of the eyes when getting up may be a manifestation of ischemia and hypoxia of the brain, which may be caused by the patient’s usual low blood pressure, and may cause transient hypoperfusion of the brain when getting up suddenly, resulting in insufficient cerebral blood supply. It can be seen in patients with postural hypotension, which is an autonomic dysfunction disease, and can manifest as postural hypotension may also appear palpitations, sweating, and precordial discomfort and other symptoms. Postural hypotension is characterized by a transient drop in blood pressure when standing up from a lying or sitting position, resulting in transient ischemia and hypoxia of the brain, which can lead to blackouts and balance disorders. Some patients show transient limb motor dysfunction, sensory deficits, etc., mainly for symptomatic treatment. If the patient frequently occurs when the above symptoms must move slowly, usually low blood pressure can be oral pulse drink, if necessary, oral sugar saline, serious cases can also be intravenous infusion of 706 plasma or saline to expand the capacity of treatment.