The situation of dizziness and blackness in front of the eyes when standing up from squatting is usually caused by several conditions such as transient cerebral insufficiency of blood supply, and hypoglycemia and hypotension. Treatment can be applied as follows: 1. Establish intravenous access quickly and rehydrate appropriately according to the blood glucose, recommend supplementing with 5% glucose injection of 250ml or more, and observe the blood glucose, if the blood glucose is too low and continues to be lower than 3.9mmol/L, you can also push high sugar intravenously, push in 20% glucose or injection and 50% hypertonic glucose. 2. If it is an acute cerebrovascular accident, thrombolytic and hemostatic treatment should be performed for cerebrovascular vessels. 3. If sudden vertigo is caused by low blood pressure, treatment to raise blood pressure should be given, such as raw vein drink and ginseng injection.