Your perineum is the area between your vaginal opening and back passage (anus). It is common for the perineum to tear to some extent during childbirth. Tears can also occur inside the vagina or other parts of the vulva, including the labia.
Up to 9 in every 10 first time mothers who have a vaginal birth will experience some sort of tear, graze or episiotomy. It is slightly less common for mothers who have had a vaginal birth before. For most women, these tears are minor and heal quickly.