What conditions cause abnormal vaginal bleeding in women who are NOT ovulating regularly or vaginal bleeding after menopause?
Many conditions can interfere with the proper function of female hormones that are necessary for ovulation. For example, many conditions or circumstances may cause oligomenorrhea (reduction in the number of menstrual periods and/or amount of flow than usual) such as: • If a woman has chronic medical illnesses or is under significant medical or emotional stress, can begin to have a loss of her menstrual periods. • Malfunction of a particular part of the brain, called the hypothalamus, can cause oligomenorrhea. • Anorexia nervosa is an eating disorder associated with excessive thinness that causes many serious medical consequences as well as oligomenorrhea or amenorrhea (the absence of menstrual periods). • Polycystic ovarian syndrome (PCO or POS) is a hormonal problem that causes women to have a variety of symptoms that include irregular or no menstrual periods, acne, obesity, infertility, and excessive hair growth; that are detectable with blood tests. The complete loss of ovulation is
