Sophora japonica, the Chinese medicine acacia flower, has the effect of cooling the blood to stop bleeding (making the blood cool and moist to achieve the effect of stopping bleeding), clearing the liver and diarrhea (clearing the liver fire). Commonly used in the treatment of blood heat caused by intestinal blood, hemorrhoids blood, blood in the urine, hemorrhagic (blood in the urine and accompanied by pain) and other conditions. Sophora belongs to the cool blood to stop bleeding medicine, for the legume plant acacia dry buds and flowers into medicine. It is slightly cold in nature, bitter in taste, and belongs to the liver and large intestine meridians. The effect is to cool the blood to stop bleeding, clearing the liver and cathartic fire. It is often used in the treatment of blood in the intestines and bowels caused by blood heat, hemorrhoids, blood in urine, hemorrhage, epistaxis, carbuncle sores and ulcers. It is mainly taken by decoction, and can also be ground and swallowed. Generally, it should be used raw if it is needed to cool the blood and remove fire, and it should be used charcoal of acacia flower or fried acacia flower if it is needed to stop bleeding. Caution should be exercised in the use of this drug for those with coldness in the spleen and stomach (spleen and stomach weakness and cold), and for those with phlegm-dampness, or those with yang deficiency and fever, but without actual fire. Although there is no definite adverse reaction to the above drugs, it is recommended to take the drugs under the guidance of a Chinese medicine practitioner who can identify the symptoms, rather than taking the drugs on one’s own, in order to avoid delays in the condition or the occurrence of adverse reactions.