Absence of clean menstruation after childbirth may be related to factors such as changes in hormone levels, poor recovery of the uterus, residual in the uterine cavity, and mental stress. At this time, the uterus can be examined to understand the degree of body recovery and treated accordingly: 1. Hormone level changes: After delivery, maternal lactogen secretion increases, estrogen level decreases, ovarian and ovulatory functions are inhibited, and anovulatory type dysfunctional uterine bleeding occurs, and menstrual dripping does not finish. In this case, you can go to the hospital for sex hormone tests and ultrasound to confirm the cause. Generally, it can be relieved after ovulation is restored to normal, so there is no need to worry too much. 2. High mental stress: Due to the change of hormone level, identity change and other factors, mothers are prone to anxiety, depression and other bad emotions, and at this time, menstruation is easy to show symptoms of dripping. At this time, relatives should be more concerned about the maternal state, so that the maternal mood to maintain good, serious cases can be psychological counseling to relieve pressure; 3, poor recovery of the uterus: the fetus is too large, too much amniotic fluid and other factors can lead to poor recovery of the uterus. Due to the poor recovery of the placental attachment surface, it is easy to lead to the reopening of the blood sinus, which in turn causes bleeding and occurs during menstruation leading to unclean menstruation. In this case, you can take prostaglandin drugs such as carboprost aminotriol and misoprostol under the guidance of a professional doctor to promote recovery. Pay attention to rest, diet is light, you can eat more fruits and vegetables, such as kiwi, celery, etc.; 4, residue in the uterine cavity: after delivery, if the placenta, fetal membranes and other tissues are not drained from the uterine cavity, can lead to the symptoms of unclean menstruation, can also be accompanied by abdominal pain. If the residue is less, the uterus can be treated with uterine contraction drugs, such as new biochemical pellets, if the residue is more, the uterus needs to be scraped for treatment; 5, other: if the endometrium was damaged during the birth, or the pregnancy combined with uterine fibroids, uterine polyps, etc., can also affect the postpartum period, so that the period has been unclean, can be treated with the corresponding surgery.