Fresh blood after 1 month of cesarean delivery may be physiological factors, such as poor uterine rejuvenation and menstrual flow, or pathological factors, such as late postpartum bleeding, uterine cavity inflammation, placenta and meconium residue, which need to be treated after clarifying the cause. Common causes and treatment methods 1. Physiological factors 1. menstrual flow: few women can resume menstrual flow one month after cesarean section, if the bleeding volume and bleeding time are the same as the previous menstrual cycle, consider it may be menstrual flow, daily attention should be paid to personal hygiene, avoid bathing and sexual intercourse, change and wash underwear regularly; 2. poor uterine regeneration: if there is a small amount of vaginal bleeding, not accompanied by abdominal pain, consider poor uterine regeneration after delivery. Consider poor uterine regeneration after delivery. It takes about 56 days for the uterus to return to its pre-pregnancy state after normal cesarean section. One month after delivery, the uterus has not yet fully recovered and a small amount of vaginal bleeding may occur, which is related to uterine regeneration and incision healing. If the vaginal bleeding is low, it can be observed for a while. If the bleeding increases or is accompanied by abdominal pain, you need to visit the hospital in time to investigate the possibility of the following diseases Second, disease factors 1, late postpartum bleeding: If the vaginal bleeding is larger, significantly more than the amount of menstruation and accompanied by blood clots, then consider the possibility of postpartum bleeding, you need to go to the hospital as soon as possible to clarify the diagnosis, you can apply under the guidance of the doctor to promote uterine contraction drugs such as uterine contracting hormone. If the medication is not effective, surgical treatment and interventional treatment can be chosen. 2. Inflammatory reaction of the uterus: During the recovery process of the uterus, if there is inflammation in the mucous membrane layer of the uterus, resulting in inflammatory reaction of the uterine cavity, bloody malacia can also occur. Usually anti-inflammatory, intravenous drip or oral antibiotics, pay attention to the choice of antibiotics if you are breastfeeding; 3, placenta, meconium residue: there may be some meconium residue in the uterine cavity after delivery, resulting in vaginal bleeding one month after delivery; ultrasound to confirm the diagnosis of placenta residue, according to the size of the residue, the situation of malignant dew, placenta residue time, etc., the smaller residue can choose conservative treatment, such as contractions to strengthen the uterus If the residue is small, conservative treatment can be chosen, such as contraction to strengthen contraction, biochemical soup, motherwort and other Chinese herbs to remove stasis. If the residue is large, bleeding or placenta residue is long and conservative treatment is ineffective, it is recommended to perform a curettage. Breastfeeding can stimulate the secretion of oxytocin and help the uterus to revive. It is recommended to follow up regularly after delivery to clarify the body recovery and uterine regeneration, and to pay attention to strengthen personal care and develop good living habits.