11. Primary amenorrhea is characterized by delayed menarche. 12. This is a postnatal disorder that is also known as postpartum galactorrhea-amenorrhea syndrome. 13. Amenorrhea ( absence of menstruation ) occurs in about 20 % of women with ovulatory dysfunction.14. Other patients may have no adhesions but amenorrhea and infertility due to a sclerotic atrophic endometrium. 15. Stress, physical exercise, and weight loss have been correlated with oligomenorrhea and secondary amenorrhea . 16. There are two types of amenorrhea . 17. Later, the lack of estrogen results in the presentation of primary amenorrhea and tall stature. 18. Too much exercise may cause a woman to miss her periods, a symptom known as amenorrhea . 19. Secondary amenorrhea is caused by low levels of the hormone leptin in females with low body weight. 20. The lactational amenorrhea method ( LAM ) requires breast feeding at least every four to six hours.
