The medical regulation of menstrual volume 5-80ml is the normal range, 5ml very little is the amount of small syringes, the average person will not appear menstrual volume is particularly small, if the menstrual period only lasts for 2 days, menstrual dripping, it is possible that is particularly small. Some women in the society now think that the low menstrual blood may have some toxins that cannot be excreted and think that the more bleeding and detoxification the better it is for the body, but in fact it is not. If the menstrual volume exceeds 80ml, the body is prone to anemia, decreased resistance, co-infection and other problems. If the menstrual flow is particularly low, less than 5ml, you need to go to the hospital for a systematic examination, including the usual gynecological ultrasound, internal gynecological examination, to determine whether there is a problem of cervical adhesions, and if necessary, hysteroscopy to exclude the possibility of inflammatory reaction in the uterine cavity.