To widen the introitus and facilitate vaginal delivery
Explanation
An episiotomy is defined as a deliberate incision made on the perineum in the second stage of labour to widen the introitus and facilitate vaginal delivery. It is not a method of inducing contractions, repairing the cervix, or removing the placenta.\n\n**Key takeaway:** Episiotomy is a perineal incision used selectively to facilitate birth.\n\n**Glossary:** **Perineum**: The tissue between the vaginal opening and anus; **introitus**: The entrance to the vagina; **second stage**: The period from full cervical dilatation to birth.