Objectively speaking, Ginkgo biloba cannot prevent cerebral infarction. Ginkgo biloba is a kind of proprietary Chinese medicine, which has the effect of activating blood circulation and removing blood stasis and clearing channels and collaterals, and it is mainly used to treat hemiplegia, stroke, chest paralysis, heart pain and other diseases. The prevention of cerebral infarction is divided into primary prevention and secondary prevention.1. Primary prevention mainly focuses on the treatment of the causes of cerebral infarction, such as stabilizing blood pressure for patients with hypertension, controlling blood sugar for patients with high blood sugar, and lowering lipids for patients with high blood lipids.2. Secondary prevention mainly focuses on the patients who have already suffered from cerebral infarction, and in addition to the same contents as the primary prevention, it is also necessary to take long-term medication to prevent the recurrence of cerebral infarction, which is commonly used to prevent the recurrence of cerebral infarction. Cerebral infarction recurrence, commonly used drugs are aspirin and atorvastatin, the former’s main function is to anti-platelet aggregation, to prevent thrombosis, the latter’s main function is to stabilize plaque, lipid regulation, to prevent plaque falling off caused by cerebral infarction. Therefore, Ginkgo biloba does not have the above effects, and there is no large-scale clinical trial to confirm that it has the effect of preventing cerebral infarction.