Those who have low amount during menstruation belonging to the blockage of blood and silt can drink motherwort granules, which have the effect of activating blood and regulating menstruation. Motherwort granules are composed of motherwort, which has the effect of activating blood and regulating menstruation. It can be used to treat menstrual irregularities caused by blood stasis. It manifests as low menstrual flow, dribbling, blood clots, staggered menstrual period, dark purple tongue or bruises, and so on. If the above symptoms are present, it is usually recommended to take it about one week before menstruation until the onset of menstruation. If the menstrual period is characterized by low flow with dark purple color and blood clots, motherwort granules can also be taken orally during the menstrual period to expel the blood from the body by taking advantage of the onset of menstruation. The adverse effects of Motherwort Granules are not known. Contraindication is that those with heavy menstrual flow should not take it during menstruation to avoid causing collapse (excessive menstrual flow or spotting). The occurrence of low menstrual flow, need to consult a doctor in a timely manner, by a professional physician for diagnosis and treatment, not self-medication to avoid adverse consequences.