It is a menstrual disorder characterized by pelvic, abdominal, or back pain resulting from menstruation.[18][19] Chamomile is a type of daisy-like plant that ancient Roman woman used to treat dysmenorrhea.[20] Venipuncture through leeches was another kind of treatment for this disorder.[21] In ancient Rome, women with heavy menstrual bleeding would be treated by applying ligatures to the groin and to the armpits, thus blocking off blood flow throughout the body. It was theorized this also resulted in the reduction of blood flow to the uterus.