The color of the leukorrhea before menstruation is milky white and has no odor. Normally, the color of the leukorrhea before menstruation does not change and is milky white and slightly sticky. If the color of the leukorrhea turns yellow or yellowish-green before menstruation, it means that there is an inflammatory infection. Vaginitis, vulvovaginitis, cervicitis, etc. can cause the leukorrhea to be in an abnormal state. Leukorrhea may be tofu scum, watery, fishy odor and other changes. Pay attention to observe the amount of leukorrhea, color and other changes, abnormalities, to go to the hospital in a timely manner to test the leukorrhea routine, targeted treatment. In addition, after menstruation, pay attention to pubic hygiene, change sanitary napkins, underwear, etc., to keep the pubic area dry.