In the first case, the vaginal discharge increases slightly when a woman first becomes pregnant. In the first case, as the embryo grows and develops after the pregnancy, the basal metabolism is high and the secretions formed by the cells shed from the vagina increase. In the second case, due to the increase of hormones in the body after pregnancy, the vagina produces more secretions, which can stop the bacteria in the vagina from getting infected upstream. When women have more secretions after pregnancy, it can be relieved by washing the vulva with warm water and wearing loose underwear. If it doesn’t relieve or if women have vulvar itching, they need to go to the hospital as soon as possible to check and test the routine leucorrhea, and then give anti-inflammatory drugs according to the results of the routine leucorrhea test to avoid affecting the growth and development of the early embryo.