I roto i te 1992 French arotake tuhinga i mea e rite maha rite 50% o hou kaiwhakamahi tuatahi-wā mutu te pire whakahaere whanau i mua i te mutunga o te tau tuatahi no te mea o te riri o ngā pānga taha pērā i te toto pakaru, me te amenorrhea. He 2001 rangahau e te Kinsey Institute tūhura tohu o te mutu o te rongoā ā-waha kitea e 47% o 79 wahine mutu te pire. kitea tetahi rangahau 1994 e wahine te whakamahi i te pire whakahaere whanau 32 ōrau atu pinepine atu i te hunga e kore e whakamahi i te tikanga. I tetahi atu ringa, e taea e te pire i ētahi wā te whakapai ake i ngā āhuatanga pērā i pākiki inflammatory, dysorrhea, mate premenstrual, me te mate whākōkī, whakaiti i ngā tohu o te acometriosis me te polycystic ovary, me te mate whākōkī whākōkī whākōkī whākōkī whākōkī whākōkī whākōkī whākōkī whākōkī whākōkī whākōkī whāk
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