TY - JOUR ID - 45552 TI - Association between Sexual Activity during Menstruation and Endometriosis: A Case-Control Study JO - International Journal of Fertility and Sterility JA - IJFS LA - en SN - 2008-076X AU - Mollazadeh, Sanaz AU - Sadeghzadeh Oskouei, Behnaz AU - Kamalifard, Mahin AU - Mirghafourvand, Mojgan AU - Aminisani, Nayyereh AU - Shobeiri, Mehri Jafari AD - Students’ Research Committee, Nursing and Midwifery Faculty, Tabriz University of Medical Sciences, Tabriz, Iran AD - Midwifery Department, Tabriz University of Medical Sciences, Tabriz, Iran AD - Social Determinants of Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran AD - 4Department of Statistics and Epidemiology Faculty of Health Sciences, Tabriz University of Medical Sciences, Tabriz, Iran AD - 5Department of Obstetrics and Gynecology, Tabriz University of Medical Sciences, Tabriz, Iran Y1 - 2019 PY - 2019 VL - 13 IS - 3 SP - 230 EP - 235 KW - Endometriosis KW - Menstruation KW - Orgasm KW - Sexual Activity DO - 10.22074/ijfs.2019.5601 N2 - Background The prevalence of endometriosis in the general population is estimated at 7-10%. There are various risk factors for this disease, including early menarche age, prolonged menstruation or no history of pregnancy. It seems that sexual activity leading to orgasm during menstruation increases the retrograde menstruation, sending endometrial tissue to an abnormal sites and thus increasing the risk of endometriosis. The present study is aimed to determine the association between sexual activity during menstruation and endometriosis. Materials and Methods This case-control study, conducted in the year 2017, recruited 555 women who were visited at Alzahra Hospital in Tabriz, Northwest of Iran. The case group comprised 185 women of reproductive age with confirmed endometriosis. The control group comprised 370 women of reproductive age without endometriosis visit- ing the hospital for other issues. Data was collected using a researcher-made questionnaire based on previous studies. Bivariate analysis was performed by the chi-squared test and multivariate analysis was done using conditional logistic regression to control confounding variables. Results The sexual activity of the two groups during menstruation was significantly different. The occurrence of endometriosis in women who stated they had vaginal intercourse or non-coital sexual activities, leading to orgasm during menstruation, was significantly higher compared to those who stated they did not. Conclusion According to our findings, there is an association between sexual activities leading to orgasm during menstruation and endometriosis. UR - https://www.ijfs.ir/article_45552.html L1 - https://www.ijfs.ir/article_45552_0d066e688540d4dec1a079dafd7bb72c.pdf ER -