Normal female underwear secretion, is colorless and tasteless or milky white, yellowish color, are normal. Women after puberty due to the ovaries secreted a certain amount of estrogen and progesterone, the role of the pelvic organs may also lead to the secretion of leukorrhea, there are cyclical changes. The amount of leukorrhea is less after the period is just cleared, during ovulation the leukorrhea is more colorless, transparent and pulpy, and the leukorrhea secretion becomes more viscous when menstruation is approaching. Women should pay attention to keep the vulva clean and hygienic, wear loose underwear, do not eat cold and spicy stimulating food. When there is a fishy odor of leukorrhea or vulvar itching, most of them are combined with vulvovaginitis or vaginitis, and need to be given gynecological lotion and anti-inflammatory drugs for treatment.