Menstrual disorders are very common and worth of treating
Contraceptives are effective in many of the disorders
Combined contraceptives (pills, ring, patch) has good effect on cyclical disorders (C?), dysmenorrhea (B) and menorrhagia (B) Evidence is still limited on PMS
LNG-IUS has good effect on menorrhagia (A), dysmenorrhea (B). Poor evidence on PMS.