[6][7] Certain endocrine disorders, such as hyperprolactinemia, hypothyroidism, hyperthyroidism, Cushing's syndrome, and acromegaly, can cause polymenorrhea.
[8][9][additional citation(s) needed] While not a classical symptom, polymenorrhea can occur as a result of uterine fibroids.
[4] In addition, when it is due to an inadequate luteal phase and hence progesterone deficiency, polymenorrhea may be related to an increased risk of endometrial cancer.
[4] If it persists, is disturbing, or if there is considerable blood loss due to the frequent periods, treatment may be indicated.
[4] The mainstays of treatment are a progestogen during the luteal phase of the cycle or a combined oral contraceptive pill.