"Problems associated with the menstrual cycle are now commonplace. The majority of teenagers whom I have seen suffer problems such as PMS, severe cramping, and irregular or heavy cycles. Severe hypothyroidism may cause the menses to stop. Dr. Barnes noted his patients with menstrual problems usually suffered many other telltale symptoms of hypothyroidism. Mine do as well. A large majority of menstrual problems resolve after treatment with dessicated thyroid."