Bleeding at 50 days postpartum indicates that the woman is still having bloody postpartum discharge at this stage, which is usually abnormal. Under normal circumstances, bloody discharge usually lasts for about 3-4 days, after which it can be changed to plasma discharge and white discharge, and mostly disappears after 4-6 weeks after delivery. Bloody discharge is mostly caused by poor uterine contraction and other disease factors, and the common causes are as follows: 1. Poor uterine contraction: excessive amniotic fluid, placenta is too large, part of the placenta and/or fetal membranes remain in the uterine cavity after delivery, endometritis, uterine myx adenomas, post-partum uterine trophoblastic tumors and so on, which all can cause poor uterine contraction, affect the uterine regeneration, leading to continuous blood discharge after delivery; 2. Uterine morphology and position effects: Excessive retroversion or retroflexion of the uterus, excessive swelling of the uterus, etc., can also induce incomplete uterine recovery, leading to persistent bleeding; 3. Systemic adverse factors: coagulation disorders, chronic diseases, excessive blood loss, severe vaginal lacerations, etc., can also lead to persistent post-partum bloody discharge of blood; 4. Scarred uterus: women undergoing cesarean section with a poorly aligned scar and overly tight stitches, resulting in the scar not being restored to normal, can also cause uterine Abnormal bleeding. If bleeding still occurs 50 days after delivery, you should seek medical attention as soon as possible for examination and timely treatment after clarifying the cause to prevent excessive bleeding or aggravation of the disease.