Prevalence of third and fourth degree of perineal lacerations during vaginal delivery and some related factors in Nik Nafs maternity of Rafsanjan in 2015-2017

Introduction: Perineal injury is a common complication of vaginal delivery that can affect women's physical, mental and social health. This study was performed with aim to determine the prevalence of third and fourth degree of perineal laceration during delivery and some related factors. Methods: In this retrospective analytical -descriptive study, information was extracted from the records of mothers who gave birth during 2015-2017. The control group consisted of 129 mothers who did not have severe rupture and were selected by systematic randomization among vaginal deliveries performed during the mentioned years. After collecting information about the factors related to the perineal laceration, data were analyzed by SPSS software (version 18) and Chi-square and Fisher Exact and independent t tests. P