A week before menstruation, leucorrhea may increase because of pelvic congestion and increased vaginal mucosal exudate. However, it is normal to have increased leucorrhea that is still white in color and has no fishy odor. If the leukorrhea is more with yellow color or fishy odor, it is considered to be inflammation, and it needs to be diagnosed by the leukorrhea test. The leucorrhea secretion a week before the menstrual period is more related to the change in the body’s hormone level, resulting in increased leucorrhea. You can use warm water to wash your pubic area every day to keep your personal hygiene clean, which is not a big problem.