It is normal for both women who had a normal delivery and those who had a cesarean section. After delivery, blood and necrotic meconium are discharged through the vagina. The normal bloody nightmare has a faint smell of blood and no odor. In normal births, the bloody nightmare usually lasts for about 1 week, but in cesarean deliveries, the bloody nightmare lasts for a longer period of time, some women can last 1-2 months after cesarean delivery, but the bleeding is gradually reduced and the color slowly becomes lighter. Because of the uterine incision and the impact on the uterus, the bloody nightmare lasts longer than in normal delivery. Plasma nightmare is light red because it contains a small amount of red blood cells, and white nightmare after plasma nightmare.