- International Association for the Study of Pain
- International Association for the Study of Pain (IASP)
- Publication date:
- 01 October 2013
Dysmenorrhea, defined as pain associated with menstruation, is subclassified as either primary, in the absence of underlying organic disease, or secondary to a specific abnormality. Potential causal abnormalities for secondary dysmenorrhea include endometriosis (and adenomyosis), uterine fibroids (myomas), congenital uterine anomalies, endometrial polyps, use of an intrauterine contraceptive device, ectopic pregnancy, pelvic adhesions, pelvic abscess, pelvic inflammatory disease, ovarian cysts, ectopic pregnancy, and, rarely, uterine or ovarian neoplasm.