The darkening of a woman’s vagina may be caused by hyperpigmentation, abnormal vaginal bleeding, and vaginal inflammation. A woman’s vaginal blackness may be related to pigmentation, the labia are repeatedly stimulated by external friction for a long period of time, so that the local pigmentation increases, its color will gradually deepen with the migration of time, which is a normal physiological phenomenon. A woman’s vaginal blackness may be associated with abnormal vaginal bleeding, may be menstrual disorders caused by old bleeding, blood was dark brown, there will be vaginal black phenomenon, can follow the doctor’s advice to take drospirenone ethinyl estradiol tablets, deoxyprogesterone and ethinyl estradiol and other medications for treatment. A woman’s vaginal blackness may be related to vaginal inflammation, vaginal inflammation leads to dark brown secretions appear vaginal black phenomenon, can follow the doctor’s instructions to use metronidazole, tinidazole and other drugs for treatment. Therefore, the woman vagina black patients should go to the hospital in time to check, clear cause actively cooperate with the doctor for treatment.