It also contains vitamin C, riboflavin, carotene, calcium, phosphorus, iron, potassium, magnesium and other trace elements, as well as ginkgolic acid, ginkgolic acid, pentosan, sterol and other components, and is rich in nutrition. Ginkgo biloba can treat asthma, expectorant cough, leucorrhea, nocturnal emission, gonorrhea, frequent urination and other diseases, and it is also effective in tonifying kidney.