Only woman are blessed with motherhood and the first step towards it is menstruation. It starts at age 12- 13 year and last till the age of 42-46 years duration a lady is able to reproduce. Menstrual cycle is of 28-32 days, it clears the toxicity of the body. When menses stops at age of 46 or onwards (in few cases) it is known menopause. Total absence of menses eve after the age of 16 years is known as pre-ammenorrhoea and when it disappears in reproductive age due to any cause is known as sec, amenorrhoea. When menses is profuse it is known as menorrhagia. The abnormal bleeding between two menses is known as metrorrhagia. If the menses is severely painful it is known as dysmenorrhagia, it is of two types:
1. Spasmodic dys-more common between the age of 18-24 years the uterine muscles contracts and relaxes very rapidly which causes severe pain.
2. Congestive dys-menstrual flow is obstructed due to any pathology in vaginal tract which causes several congestion in uterus