Menstrual is the discharge of blood, mucus, endometrium and unfertilized ovum from the uterus after the destruction of an average of 28 days (24-32) in the sexual life of an adult woman. Menstrual cycle is the periodic occurrence of menstruation. The first cycle is called menarche. Menstrual cycle starts at the age of 12-15 years and continues till the age of 45-50 years. It has gonadotropic hormone effect.