Getting up dizzy after squatting on the toilet may be caused by insufficient blood supply to the brain. When squatting on the toilet, you are usually in a squatting position, and when you suddenly get up, you may experience a transient drop in blood pressure, which can easily cause hypoperfusion in the brain and can cause cerebral hypoperfusion. Inadequate blood supply to the vertebrobasilar system allows patients to exhibit signs and symptoms of cerebellar and brainstem ischemia and hypoxia. Patients can present with dizziness, nausea, and vomiting, as well as balance disorders and ataxia. If the patient becomes dizzy when getting up, the patient should be supported to help prevent a fall. If the patient has inadequate blood supply to the internal carotid system, the main signs and symptoms are ischemia and hypoxia in the brain, and the patient may also present with a transient blackout in one eye. Patients may experience episodes of weakness or sensory impairment in one limb, and may also experience episodes of speech dysfunction, which may even cause cerebral infarction in severe cerebral insufficiency. So when you get up after squatting on the toilet, you must move slowly.