DefinitionMenopause is the transition period in a woman's life when her ovaries stop producing eggs, her body produces less estrogen and progesterone, and menstruation becomes less frequent, eventually stopping altogether.Alternative NamesPerimenopause; PostmenopauseCauses, incidence, and risk factorsMenopause is a natural event that normally occurs between the ages of 45 and 55.Once menopause is complete (called postmenopause) and you have not had a period for 1 year, you are no longer at risk of becoming pregnant.The symptoms of menopause are caused by changes in estrogen and progesterone levels. The ovaries make less of these hormones over time. The specific symptoms and how significant (mild, moderate, or severe) they are varies from woman to woman.A gradual decrease of estrogen genera