To explore the relationship between pubic injury and levator anal muscle(LAM) injury among primiparas after vaginal delivery. 88 primiparas after vaginal delivery were collected in our study. Two radiologists identified and evaluated the injury condition of pubic and LAM on MR images. The proportion of LAM injury was significantly higher in the pubic injury group than that of in the non-pubic injury group, and the degree of pubic injury was positively correlated with the degree of LAM injury.
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