Sainz JA, Gonzalez-Diaz E, Martínez AM, et al. - Researchers intended to present overdistention rates after assisted vaginal delivery with a postpartum ultrasound examination. They designed a multicenter study including a retrospective analysis of data from primiparous women (n = 602) who had previously been recruited at three tertiary hospitals between January 2015 and January 2017. They evaluated overdistention at 6 months postpartum using a three-/four-dimensional transperineal ultrasound. They recorded a developed risk of overdistention following forceps delivery compared with vacuum delivery, with a crude odds ratio (OR) of 59.9 and an adjusted OR (adjusted for maternal age, second-stage duration, and head circumference) of 17.6. The data showed that postpartum overdistention happened for 20% of assisted vaginal deliveries, with a developed risk of overdistention following forceps delivery in comparison with vacuum delivery.