Pregnancy.

Some of the causes of primary amenorrhea can also cause secondary amenorrhea.The most common cause of seconardy amenorrhea is pregnancy.The cessation of menstruation also occurs permanently after menopause or a hysterectomy.

The most telling amenorrhea symptom is a lack of menstrual periods. Other symptoms include hair loss, vision changes, too much facial hair, and milky nipple discharge.

Typical causes of primary amenorrhea include: excessive physical activity.drastic weight loss.extreme obesity.drugs.chronic illness.turner's syndrome.the absence of a vagina or a uterus.imperforate hymen

Causes include pregnancy or breastfeeding, sudden weight loss or gain, intense exercise, stress.