Inducing menstruation early is possible through hormonal medications, but doctors usually give them to women who have specific medical problems, according to WebMD. Some conditions that cause irregular periods are changing birth control pills, excessive exercise, polycystic ovary disease, stress and hyperthyroidism.
Irregular periods may delay menstruation and need treatment if there are underlying disorders such as PCOS and hyperthyroidism, explains WebMD. Birth control pills can regulate hormones and induce a period for women with PCOS. Those with hyperthyroidism receive thyroid hormones to treat the disease and eliminate symptoms, which can include irregular periods. Other changes that help regulate menstruation are stress reduction, weight loss and moderate exercise.
Hormonal therapy, which uses hormones such as progestins, regulates menstruation, according to the Mayo Clinic. Progestins cause changes in the uterus in various ways. If the amount of progestins in the blood suddenly decreases, the lining of the uterus comes off and menstruation occurs. The hormones also help other hormones start and stop the menstrual cycle.
Medroxyprogesterone is a progestin that induces a normal menstrual cycle in women who have not menstruated for at least six months, notes MedlinePlus. The hormone prevents the overgrowth of the lining of the uterus and may decrease the risk of uterine cancer in patients who take estrogen. In some cases, irregular periods are a result of scarring in the uterus, and surgery may be necessary to regulate them, explains WebMD.