Evil discharge is usually cleared in 4-6 weeks. After delivery, as the uterine metamorphosis is peeled off, blood and necrotic metamorphosis and other tissues are discharged through the vagina, which is called bad dew. According to the color of the discharge, it is classified as bloody, plasma, or white. Hemorrhagic douches are red in color, contain a large amount of blood and a small amount of necrotic meconium, and appear within the first 3 days after delivery. Plasma douches are reddish in color, contain a small amount of blood, cervical mucus, and bacteria, and occur between 4 and 14 days postpartum. White colored discharge is white, contains a lot of white blood cells, bacteria, etc., and occurs after the 14th day postpartum. Normal discharge may smell like blood, but is usually odorless. If there is retained placenta, fetal membranes or infection, it may prolong the duration of the discharge and have a foul odor. If you notice infected discharge, you should go to the hospital and follow the doctor’s instructions.