If the menstrual flow is low, it is best to make a bowl of brown sugar motherwort water during menstruation and drink it while it is hot to eliminate fatigue, correct anemia, and improve the low menstrual flow. Motherwort has the effect of activating blood circulation and removing blood stasis, which can treat menstrual flow, and brown sugar can make menstrual blood flow more smoothly, which will increase menstrual flow. In addition, for patients with scanty menstrual flow, ultrasound examination is recommended to understand whether there are abnormalities in the pelvis and whether there are polycystic changes in the ovaries bilaterally. It is recommended to take blood test for sex hormone six on the 2nd day of menstruation, mainly to understand whether the endocrine is normal and whether the ovaries are functioning normally, and then give treatment according to the result in order to achieve the ideal treatment effect and improve the situation of low menstrual flow.