Menstrual flow Blood and discharge that are passed out of the uterus through the vagina during the beginning of the menstrual cycle. Related Articles: Glossary: Menstrual cupGlossary: Sanitary padBehavior, Fertility, & More | Breaking Down the Menstrual CycleMany, many factors contribute to a woman’s behavior, sex drive, and whom she chooses to sleep with. Yet, when Day 12 comes around and you find yourself choosing that short skirt, you’ll know why. Menstrual cycle Menstrual synchrony
