Ginkgo biloba is mainly applied to ischemic cardiovascular diseases, its can dilate cardiovascular and cerebral blood vessels, improve circulation, lower blood lipids, lower blood pressure, reduce blood viscosity. Dizziness after taking ginkgo biloba is considered to be due to the role of ginkgo biloba as a blood vessel dilator, and patients can experience lower blood pressure and cause dizziness. Therefore, patients are recommended to monitor blood pressure regularly during oral ginkgo biloba, especially young patients. Ginkgo biloba side effects also include gastrointestinal tract irritation symptoms, because ginkgo biloba mainly have blood circulation, blood stasis, the role of the ligament. Patients with chronic gastritis and gastric ulcer can experience pain in the stomach area after taking it, and in severe cases, gastrointestinal bleeding and black stools can occur. It is recommended that middle-aged and elderly patients take Ginkgo biloba orally under the guidance of physicians and avoid long-term oral intake to avoid causing irritation symptoms in the gastrointestinal tract.