Condition
The second stage of labour is the period of time between full cervical dilatation and birth of the baby, during which the woman has an involuntary urge to bear down, as a result of expulsive uterine contractions. 2
Slow progress of second stage of labour can be suspected when birth does not take place within 2 hours (or 3 hours if regional anaesthesia is used) for nulliparous women since the start of the active phase and within 1 hour (or 2 hours if regional anaesthesia is used) for parous women. 4-5