WHAT IS MENSURATION?
Menstruation is the shedding of the uterine lining when pregnancy doesn't occur.
MENSTRUAL CYCLE PHASES
1. Menstruation (Days 1-5)
2. Follicular phase (Days 6-14)
3. Ovulation (Day 14)
4. Luteal phase (Days 15-28)
MENSTRUAL CYCLE LENGTH
Average: 28 days
Range: 21-35 days
MENSTRUAL FLOW
Average duration: 4-7 days
Average blood loss: 30-40 mL