The main reason that would lead to an assisted vaginal delivery is suspected foetal distress.

This is when your baby is short of oxygen. It is diagnosed when the baby’s heart rate slows in response to contractions and doesn’t speed up again as it should. A further sign is if the baby’s bowels pass meconium. This will stain the amniotic fluid a green or brown colour.

Other reasons for assisted vaginal deliveries include:

• Slow progress with pushing
• Contractions have weakened
• Your baby is preterm, which means the head needs more protection.