If there is no abnormality in premenstrual period, there is no need to use medication to promote menstrual discharge. If there is abnormality, you can take Shaohuayouhuayu Pill, Wenjing Pellet and Yimucao Pellet to promote menstrual discharge, which need to be analyzed specifically. 1. Shaohui Zhuyu Pill is composed of Angelica sinensis, Pu Huang, Wu Ling Zhi, red peony and other medicines, with the effect of warming menstruation and activating blood circulation, dispersing coldness and relieving pain (relieving pain by dispelling coldness in the body), if there is a case of coldness and pain in the abdomen, taking the right amount of the pill before menstruation can promote menstrual discharge. The adverse effects of Shaobu yuyu Pills are not clear, and pregnant women are forbidden to take them. 2. Warm menstruation granules by Codonopsis, Astragalus, Poria, Atractylodes macrocephala and other drugs, with the benefit of qi and spleen (regulating the spleen and stomach qi), warm menstruation dispersal of cold (warm the human body meridians and get rid of the body’s cold), suitable for cold and dampness stagnation of the person before menstruation, to promote the discharge of menstruation. Adverse effects of warm menstrual granules are not clear, pregnant women and diabetic patients are prohibited. 3. Motherwort granules are mainly composed of motherwort, with the efficacy of activating blood and regulating menstruation (regulating menstruation by activating blood), can be used for the treatment of menstrual disorders brought about by blood stasis, for patients with blood stasis, it can be taken in moderation before menstruation. The adverse effects of Motherwort Granules are not clear, and pregnant women are forbidden to take it. If you need to use the above drugs, it is recommended to use under the guidance of a doctor, to avoid unauthorized use of medication adverse reactions, if there is menstrual disorders, it is recommended to consult a doctor in a timely manner, for appropriate treatment.