Researchers at University of Gothenburg's Sahlgrenska Academy conducted a three-decade long study involving over 2,100 women and found no evidence that using copper IUD contraception increased the pain that women felt during their periods.
In the study, 19-year-olds born in 1962, 1972 and 1982 were asked questions about their height, weight, pregnancies, children, period pain and contraception. The latest results, published in the leading journal Human Reproduction, reveal that women who use a copper IUD do not suffer from worse period pain than women who use other non-hormonal contraceptives (such as condoms) or no contraception at all, while women who use a hormonal IUD or the combined pill and those who have given birth experience milder period pain.
"Research into period pain is sorely needed," says researcher Ingela Lindh from the Sahlgrenska Academy, University of Gothenburg. "Lowering the number of women who suffer from period pain will bring down absence from work and school and reduce the consumption of painkillers."
"Women often have incorrect information about how different forms of contraception affect period pain."
The article The influence of intrauterine contraception on the prevalence and severity of dysmenorrhea: a longitudinal population study was published in Human Reproduction on 11 April 2013.