What's with five months without your period?

May did not come to menstruation, this kind of general consideration is the occurrence of amenorrhea, causing female amenorrhea common reasons, mainly including the following several kinds, the first kind, if there is sexual life, first of all, pregnancy exclusion, because, women with regular sexual life, sudden occurrence of amenorrhea, this first consideration, is caused by pregnancy, the second kind, if pregnancy can be excluded, or no sexual life, this kind of general consideration, is because of ovarian dysfunction. Or ovarian failure, caused by, the most common disease is premature ovarian failure, the third kind, may be because the endometrium has been severely damaged, caused by, the fourth kind, may be because of, serious endometriosis, caused by intrauterine adhesions, the fifth kind, may be because, hypothalamic pituitary disease caused by, specific need to go to the hospital to do a detailed examination, can be clear five months did not come to aunt's reason is what.