Menstruation usually stops permanently when a woman reaches her early fifties. This stage of the menstruation cycle is called menopause and marks the end of a woman's reproductive years. Hormonal and physical changes that prepare your body for menopause may begin years before your experience your last period. Menstruation can also stop because of illness or as a result of surgery so consult a doctor if you do not menstruate for more than three months.
