With the efficacy of cooling blood to stop bleeding (cooling and moisturizing the blood to prevent bleeding), clearing heat and promoting the production of body fluid as well as diuretic and diaphoretic (improving the problem of dribbling in the urine and the problem of small amount of urine not being able to pass), leucorrhizal root is used clinically for treating diseases of vomiting and vomiting of blood with hemorrhagic fever, epistaxis, and urination of blood. Imperata Cylindrica is sweet in flavor and cold in nature. It belongs to the lung, stomach and bladder meridians. It is effective in cooling blood and stopping bleeding (cooling and moisturizing the blood to prevent bleeding), clearing heat and promoting the production of body fluid, and inducing diuresis and diuresis (improving the problem of dribbling of urine, and the problem of small amount of urine not passing through the urine). It is used in the clinical treatment of hemorrhagic fever, epistaxis, blood in urine, fever and thirst, damp-heat jaundice, edema with low urine output, and feverish drenching (burning and stinging pain during urination, accompanied by frequent urination and urgent urination, and discomfort of traction in the abdomen) and astringent pain, etc. It is non-toxic and can be used to treat a variety of diseases. Bai Mao Gen is non-toxic, clinical application of occasional dizziness, nausea, slightly increased stool frequency and other phenomena. Attention should be paid to the spleen and stomach deficiency cold (spleen and stomach weakness cold), ulcer more than not thirsty people avoid taking. As a commonly used Chinese medicine, leucaena leucocephala must be taken in accordance with medical advice, and must not be used on its own.