If the fetal membranes are not clean after delivery, it will affect the normal contraction and rejuvenation of the uterus. What kind of symptoms can be caused by unclean fetal membranes: 1. The main clinical symptom of unclean fetal membranes after childbirth is the prolonged duration of malignant dew. The most important clinical symptom is the prolonged duration of malignant dew, which may manifest as prolonged bloody malignant dew, and even cause postpartum hemorrhage in serious cases, which needs to be cleared immediately. 2. If the fetal membranes are not cleared for a long time, it will easily lead to the invasion of pathogenic microorganisms into the uterine cavity and cause infection, and the patient will have fever, chills and abnormal discharge from the vagina. When this symptom occurs, active and effective anti-infection treatment should be given, and the residues in the uterine cavity should be removed at the right time and by the right method.