There are many reasons why menstruation cannot be discharged, which may be qi stagnation and blood stasis (blood stagnation due to lack of circulation of qi), cold congealment, blood deficiency, etc. According to the cause of the disease, one may choose prescriptions for regulating qi and activating blood, tonifying the deficiency and warming the yang. If menstruation is scanty, delayed, dark red with blood clots, breast swelling and pain before menstruation, and emotional upset, etc., which belongs to Qi stagnation, Wu Yao Tang can be used to regulate Qi and Blood. This formula consists of Xiang Fu, Wu Yao, Mu Xiang, Angelica sinensis and Licorice. If menstruation is delayed and scanty, accompanied by hidden pain in the abdomen, liking warmth and pressure, long and clear urine, and loose stools, etc., it belongs to deficiency and cold, and can be used in Warming Menstruation Soup to warm the menstruation and disperse the cold (warming the meridians and channels of the human body to get rid of the coldness in the body). The formula consists of Angelica sinensis, Cornu Cervi Pantotrichum, Paeonia lactiflora, Gui Zhi, Ginger, Mudan Pi, Ophiopogonis, Semixia and so on. If menstruation is scanty and pale in color, accompanied by delayed menstruation, dizziness, pale face, etc., it belongs to blood deficiency, it can be taken Dajianyuan Decoction to replenish blood and fill in essence, which is composed of Panax ginseng, Chinese yam, Radix Rehmanniae Praeparata, Cortex Eucommiae and so on. Patients with symptoms of discomfort are advised to go to the hospital in a timely manner, after the condition is clear, under the guidance of the physician to use the drug for treatment, do not take the drug on their own, so as not to cause serious consequences.