Menstruation Explained: Period Symptoms, Ovulation and PMS: By Shreoshree Chakrabarty Have you ever been curious about what really happens during menstruation when girls reach puberty and begin their ...

For 4-5 days at the end of each ovarian cycle, a woman sheds almost a fluid ounce of blood. Blood loss during menstruation (Latin mens = month) — dubbed “the curse” in England — amounts to almost a ...