The increase in leukorrhea on the tenth day after ovulation is usually a normal physiological phenomenon, but it may also be a pathological condition, such as vaginitis. 1. Physiological phenomenon: the tenth day after ovulation belongs to the luteal phase, ovarian secretion of estrogen and progesterone blood values rise, can promote the increase in vaginal secretions, manifested as increased leukorrhea. If there is no vulvovaginal itching or other discomfort, it is a normal phenomenon. 2. Pathological factors: when women suffer from vaginitis, such as bacterial vaginosis, trichomoniasis, vulvovaginal pseudomycosis, there will be an increase in leukorrhea, but will be accompanied by vulvovaginal itching, or frequent or painful urination and other symptoms. In addition, women need to pay attention to vulvar hygiene, wash the vulva with warm boiled water every day, change underwear frequently, and go to the hospital in time when there is an increase in vaginal discharge or accompanied by vulvovaginal itching to have a relevant examination and treatment for the cause of the disease.