Liu Huanu is a traditional Chinese medicine that can be used to treat bruises, traumatic bleeding, and menstrual disorders. Liu Huanu is bitter in taste, cold in nature and belongs to the spleen, kidney, liver and gallbladder meridians. It is mainly effective in promoting blood circulation and eliminating blood stasis, regulating menstruation and relieving pain (regulating menstruation and relieving menstrual pain), cooling the blood, clearing heat and inducing dampness (removing heat and dampness from the body). Liu Huan Nu is mostly used clinically for the treatment of bruises, traumatic bleeding, menstrual bleeding, menstrual irregularities, postpartum stasis and pain, impediment in the abdomen (the appearance of tangible or intangible lumps in the abdomen, with a feeling of distension and pain), damp-heat and jaundice, oedema and abdominal distension, and leucorrhea and excessive leucorrhea, among other syndromes. This product is forbidden to be taken by pregnant women, and should be taken with caution by people with weak qi and blood, or spleen deficiency for excretion. It is recommended that patients use Liu Shunu under the guidance of traditional Chinese medicine practitioners according to their own symptoms, and strictly follow the doctor’s instructions for rational use of medication, avoid taking without authorization.