Low menstrual flow can drink motherwort granules, because the efficacy of motherwort granules in the clinic is mainly to activate blood circulation and eliminate blood stasis, treat low menstrual flow and treat dysmenorrhea. However, for patients with scanty menstruation, it is best to go through clinical examination to find out the cause of the disease before giving specific medication, such as suggesting ultrasound examination to rule out polycystic ovary syndrome and pelvic tumors. In addition, it is also necessary to do sex hormone six tests, for example, on the second day of menstruation, blood is drawn to check sex hormone six, mainly to understand whether the ovarian function is normal, whether prolactin is high, and whether androgen is normal, and all of the above factors may lead to scanty menstruation. Therefore, it is recommended to do a detailed examination, and then according to the clinical results, then give symptomatic treatment and therapy, in order to achieve the clinical purpose of completely treating scanty menstruation.