First degree perineal laceration during delivery

**Inclusion terms:** - Perineal laceration, rupture or tear involving fourchette during delivery - Perineal laceration, rupture or tear involving labia during delivery - Perineal laceration, rupture or tear involving skin during delivery - Perineal laceration, rupture or tear involving vagina during delivery - Perineal laceration, rupture or tear involving vulva during delivery - Slight perineal laceration, rupture or tear during delivery