There is no information that Liu Huanu has the effect of lowering uric acid, but Liu Huanu as a Chinese herbal medicine has the effect of activating blood circulation, eliminating blood stasis, promoting menstruation and relieving pain, the specific use of medication should be in accordance with the doctor’s instructions. Liu huinu is a Chinese herbal medicine made from the dried whole herb of Yin Xing Cao (阴行草), a plant of the family Xuan Shen (玄参科), which is bitter in taste and cold in nature, and belongs to the meridians of the spleen, stomach, liver, and gallbladder, and is known for its effects and efficacy in activating blood circulation to dispel blood stasis and remove stagnation of blood stasis, promoting menstruation to relieve pain, cooling the blood, stopping bleeding, clearing away heat and inducing diuresis (removing the heat evils and dampness from the body), but it does not have a lowering effect of uric acid generally. Liu Shun Nu is mainly used in the treatment of traumatic bleeding, bruises, stagnation, swelling and pain, postpartum stagnation and abdominal pain, blood stasis and menstrual closure, damp-heat jaundice, edema and abdominal distension, etc. It is not indicated for use in the treatment of traumatic bleeding, bruises, stagnation and swelling. At present there is no clear contraindication to the use of drugs and adverse reactions to the use of drugs, about the specific use of Liu Huanu should be carried out under the guidance of specialists, not unauthorized use of drugs.