The dizziness that occurs when a patient squats and gets up is caused by a transient lack of blood supply to the brain, and the underlying cause is postural hypotension. When a person is squatting, the blood is relatively concentrated in the lower limbs, and the blood pressure is not adjusted in time during the process of getting up, which can easily lead to a transient shortage of blood supply to the patient’s brain and can cause the patient to experience dizziness. However, this dizziness lasts for a very short period of time and may be transient, manifesting as instantaneous dizziness and black eyes. This condition is seen to be more likely to occur in patients who usually have low blood pressure, who are usually in poor health, and who are anemic. There are also elderly people who have systolic-diastolic and diastolic dysfunction because of blood pressure adjustment, and poor vascular elasticity are also likely to occur. Patients must be slow in the process of squatting up to avoid a fall attack.