Taking aspirin generally does not cause cerebral insufficiency of blood supply, to a certain extent, can also improve the symptoms of cerebral insufficiency of blood supply. Cerebral insufficiency of blood supply is caused by the pressure on the arteries of the brain or the lowering of the pumping function of the heart, mostly related to the patient’s blood viscosity is too high, low blood pressure or thrombosis, chronic cerebral insufficiency of blood supply at the beginning of the symptom is relatively mild or no obvious symptoms, severe cerebral insufficiency can cause slurred speech, dizziness and headache, numbness and weakness of limbs and other symptoms. The most commonly used drug for the treatment of cerebral hypoperfusion is aspirin, aspirin is an antiplatelet aggregation drug, which can reduce the formation of blood clots to improve the blood supply of cardiovascular and cerebral vessels, some patients with cerebral hypoperfusion and myocardial hypoperfusion can take this drug. However, long-term use of this drug induces gastritis, peptic ulcer, peptic bleeding and other adverse reactions. Therefore, aspirin needs to be standardized under the guidance of a physician, and the adverse effects of the drug need to be closely monitored in the course of taking the drug.