How common is it for someone to need an episiotomy?

Episiotomy: Episiotomy is a procedure done at the time of delivery to facilitate the process. It is done for several reasons and is a judgement call by the delivering physician done at the time of delivery. Here in new jersey, the average rate can be anywhere between 3% - 30%. I would pressume that approximately 10-15% of women will get an episiotomy during a vaginal delivery.