Menstruation or period is normal vaginal bleeding.
Menstruation occurs as part of a woman’s monthly cycle.
Every month, woman body prepares for pregnancy. If no pregnancy occurs, the uterus, or womb, sheds its lining.
The menstrual blood is partly blood and partly tissue from inside the uterus. It passes out of the body through the vagina.
Periods usually start between age 11 and 14 and continue until menopause at about age 51. They usually last from three to five days.
Besides bleeding from the vagina, you may have Abdominal or pelvic cramping pain Lower back pain Bloating and sore breasts Food cravings Mood swings and irritability Headache and fatigue