Some strokes can heal themselves, such as transient cerebral artery insufficiency, which is a temporary brain dysfunction caused by transient obstruction of blood flow in a certain part of the brain. Ischemic attacks are short-lived, usually lasting only a few minutes. The symptoms are not sudden, similar to a stroke, but the symptoms do not last long. Although they can last as long as 24 hours, most of them disappear within one hour. Common symptoms include numbness or weakness of the upper and lower limbs on the face, especially confusion of consciousness or difficulty in speech or understanding of one limb, blurred vision in one or both eyes, difficulty in walking, dizziness or imbalance of balance and supply. Transient cerebral ischemia may be a predictor of ischemic stroke. The stroke risk of people with a history of transient cerebral ischemia is 10 times higher than that of those without this history. Understanding and clarifying its etiology is helpful to prevent the occurrence of stroke.