The causes of red discharge 20 days after delivery may be poor uterine recovery, residual tissue in the uterus, uterine infection, poorly healed cesarean section incision, cervical laceration, you need to go to the hospital in time, to find the cause of the bleeding, and treat the cause. Common causes and treatments 1, poor uterine recovery: poor uterine contraction, residual fluid and blood in the uterus are not discharged, resulting in irregular vaginal bleeding, and 20 days after delivery there is still red discharge, usually choose to uterotonin treatment, to promote uterine contraction, and at the same time adhere to breastfeeding, to help the uterus to recover; 2, uterine tissue residue: the uterus retains placenta and fetal membranes, in addition to the unclean discharge, accompanied by bleeding, blood clots, abdominal pain and other symptoms Ultrasound examination suggests intrauterine light masses, and the uterus will be cleared for treatment to improve the symptoms; women with normal delivery can be cleared directly, while those with cesarean section are recommended to have the uterus cleared under the positioning of ultrasound to make it safer, and the uterus will be given medication to promote uterine contraction after the operation, such as hysteronin, etc.; 3. Infection of the uterine cavity: If there is red discharge with odor, accompanied by symptoms such as abdominal pain, fever, etc., the infection of the uterine cavity may be occurring. Infection, check the blood for elevated total white blood cells. Treatment is based on anti-infection, such as oral or intravenous antibiotics available to the mother as prescribed by the doctor. In addition, pay attention to personal hygiene after delivery, change underwear and sanitary napkins to prevent infection; 4. Poor healing of cesarean section incision: If the incision of cesarean section is poorly healed or cracked, it will cause bleeding and reddish colored discharge. It is recommended to go to the hospital in time for treatment to stop bleeding; 5, cervical laceration: during labor and delivery, there is a laceration at the cervical opening, which is not fully recovered, and there will be bloody discharge, which can be gradually recovered by paying attention to rest. If there is a lot of bleeding, you need to go to the hospital, check the wound recovery, if necessary, suture, combined with infection to give anti-infection treatment, to promote the healing of laceration wounds. After delivery, keep the vagina clean, change sanitary napkins frequently, and insist on breastfeeding to promote uterine contraction and discharge of bad dew. Observe the color, amount and smell of the discharge. If there is any abnormality, you should go to the hospital in time for treatment under the doctor’s guidance.