Menstruation, or a period, is when the lining of the uterus sheds and leaves the body as blood. It marks the beginning of a menstrual cycle.
Premenstrual Syndrome (PMS): Symptoms and Treatment
Breast Pain and Your Menstrual Period
Irregular Periods: Why Is My Period Late? - Penn Medicine
/-/media/images/chest
The Menstrual Cycle - SHINE SA
Sleep Problems Before and During Your Period - Dr. Jolene Brighten
Heavy Menstrual Bleeding (Menorrhagia): Symptoms and More
Periods and Pre-Menstrual Syndrome (PMS) Symptoms – Clearblue
Understanding Your Menstrual Cycle and Phases
The Truth About 5 Common Period Myths - Chester County Hospital
PMS or Pregnant: How They're Different
Stressed Woman Suffering From Pain In Menstrual Period Treatment