Low menstrual volume, also known as low menstrual volume, usually when coming to menstruation, menstrual blood is dark red, the amount of the first day is small, the second and third day is more, and the last day is less, this situation belongs to normal. If the amount of menstruation is very little, almost nothing, this situation is too little menstruation, too little menstruation causes: First, Chinese medicine said that the lack of qi and blood, qi and blood deficiency of patients, that is, blood deficiency of patients, may be very little menstruation, this situation check the blood will appear anemia, you can eat blood to regulate menstruation of Chinese medicine or Chinese medicine to regulate menstruation. Second, excessive endometrial scraping, multiple miscarriages, scraping the uterus leads to endometrial thinning, this situation may also lead to endocrine abnormalities, so we should check the sex hormone six, root drama hormone levels to regulate menstruation. Thirdly, eating Chinese herbal medicines that activate blood circulation and remove blood stasis may also increase menstrual flow a little.