Sexual Advice 101
Sexual Advice 101

What is menstruation?

Menstruation refers to a woman’s monthly period. It occurs at the end of the menstrual cycle when the uterine lining or endometrial is shed in preparation for another cycle. The cycles last for 28 days on average however, the length of the cycle may vary form woman to woman. During the first half of the cycle, the levels of estrogen hormone rise. This causes the uterine lining to thicken. At this time, the follicle stimulating hormone or FSH causes an egg in the ovary to mature. Half way through the cycle, or on day 14 of an average 28 day cycle, the egg is released from the ovary and begins its journey through the fallopian tubes into the uterus. At this time, the level of progesterone hormone also increases. This causes thickening of uterine lining for supporting pregnancy in case fertilization occurs. If the egg which has been released is fertilized, it can attach itself to the wall of the uterus, a process called implantation and pregnancy results. On the other hand, if the egg is not fertilized, it degenerates. At this point, the estrogen and progesterone levels also drop and the tissue of the thickened uterine lining is shed along with some blood. This is called menstruation or monthly period. A girl starts menstruating around 12 to 16 years of age and continues menstruating regularly up until menopause, when she stops ovulating.

Sexual Advice 101

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