Prevalence of levator ani muscle injury in Chinese primiparous women after first delivery

Ultrasound in Obstetrics & Gynecology, 05/02/2012

The prevalence of levator ani muscle injury in Chinese primiparous women after their first vaginal delivery was 21.7% (95% CI 16.7% to 26.7%). Operative vaginal delivery was found to increase the likelihood of women suffering the injury. A longer follow–up of these women and future studies on effect of episiotomy are proposed.

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