The risk of cerebral hyperperfusion in carotid stenting is mainly avoided by controlling blood pressure and timing of the procedure. The control of blood pressure after carotid stenting is considered to be an effective measure to prevent cerebral hyperperfusion syndrome, especially in patients with impaired cerebral vascular autoregulation, so strict control of blood pressure during carotid stenting is very important. The timing of the procedure also has an impact on the risk of cerebral hyperperfusion. Clinically, it is believed that surgery within 3 to 4 weeks of cerebral infarction and postoperative hyperperfusion will increase the risk of hemorrhage in softened brain tissue. Therefore, patients should adjust their dietary structure before surgery, pay attention to low-salt diet, and also take antihypertensive drugs for blood pressure control as prescribed by the doctor if necessary. Meanwhile, the timing of surgery should also follow the doctor’s instruction, so as to avoid the risk of hyperperfusion syndrome.