If the menstrual volume is low after childbirth, you need to consider the following reasons: First, the mother has anemia after childbirth. Some mothers who have hemorrhage during childbirth do not recover quickly after childbirth due to their body condition, and hemoglobin does not rise significantly, which will cause deficiency of blood and Qi, which will lead to low menstrual volume. Secondly, consider whether there are adhesions in the uterine cavity. Some mothers have placental adhesions during delivery, and the endometrium will be damaged in this case, and the damage and absence of the endometrium will increase the probability of uterine adhesions, so the low menstrual flow and uterine adhesions are also related. Third, consider endocrine problems, and ovarian secretion of hormones, because during breastfeeding the ovarian secretion of hormones will also be affected to a certain extent, it is recommended to go to the hospital to check.