Prolonged menstruation means that the menstrual cycle is basically normal, but the menstrual period is greater than seven days or more, or drenching and leaking half a month to clean up the disease; Chinese medicine treatment of prolonged menstruation in the identification of the treatment, qi deficiency is often used to lift the Yuan Decoction, the deficiency of heat is often used to use the two places of the Tang and the two to the Pill, blood stasis is often used to use the Tao Hong Si Wu Tang and the Lost Smile San with the addition of subtraction treatment. 1. Qi deficiency: menstrual blood is heavy, pale in color and thin in texture, accompanied by facial depression, tiredness, fatigue, shortness of breath, tiredness and drowsiness, and a hollow drop in the abdomen, most of them are treated with Lift Yuan Decoction with additions and subtractions to replenish qi and take in blood and to fix and regulate the menstruation. 2. Heat deficiency syndrome: low volume of menstrual blood, bright red menstrual blood, thick menstrual blood, accompanied by zygomatic redness (redness of cheeks and zygomatic bones), hot flashes (a burst of heat), dry mouth and throat, and heat of the hands, feet, and heart, most of them are treated with the addition and subtraction of the Two Earths Decoction and Erzhi Pill to nourish yin and clear away heat (nourish yin and clear away the heat evils) and stop bleeding. 3. Blood stasis: heavy or light menstrual flow, dark purple menstrual color, blood clots, pain and discomfort in the abdomen during menstruation, using Taohong Siwu Tang and Lost Smile Pill to activate blood circulation and eliminate blood stasis to stop bleeding. If the patient has prolonged menstruation, he/she should consult the doctor at the hospital in time, and be treated by a TCM gynecologist after diagnosis and treatment, and should not use medication by himself/herself.