Other Risk Factors
Menstrual cycles can be changed when you are breastfeeding, giving birth, or getting pregnant. Some lifestyle changes would also increase the risk of oligomenorrhea, such as unexpected weight loss, excess stress, and going on vacation. Malnutrition would make the periods become irregular or even stop. The risk is especially high in those with eating disorders like bulimia or anorexia nervosa. In some cases, oligomenorrhea would be a sign of serious health conditions. These include diabetes, Prader-Willi syndrome, Graves’ disease, the use of anabolic steroid, obstructions of the vagina, cervix, or uterus, thyroid problems, hormone-secreting tumors, prolactinomas, hyperprolactinemia, polycystic ovarian syndrome, pelvic inflammatory disease, and primary ovarian insufficiency. [6]
