There are several reasons for leukorrhea when menstruation is approaching: first, it may be the case that women have delayed ovulation; second, it may also be the case that when women suffer from vaginal inflammation, they may also have leukorrhea, vulvar itching and odor. When there is leukorrhea when menstruation is approaching, it is best to go to the hospital for routine leukorrhea tests and ultrasound tests. If it is due to the follicle has just matured and has not yet ovulated, it is a normal delay of menstruation. If it is due to the second case of vaginal inflammation caused by leukorrhea, according to the results of routine leukorrhea test and give anti-inflammatory lotion and topical medication for treatment, when the female vulvar leukorrhea leukorrhea should also pay attention to keep the vulva clean and hygienic and to avoid local bacterial infections.