It is done by placing a amniohook (looks very similar to a long crochet hook) inside the vagina during a vaginal exam and scratching the bag until it ruptures.
Drawbacks to this can include:
- Increased risk of infection
- Lack of cushion for the baby's head
- Increased intervention, and limited mobility
There are other ways to speed labor, including walking, nipple stimulation, position changes, etc.
Amniotomy may also be used as an induction technique.
Fraser WD, Turcot L, Krauss I, Brisson-Carrol G. Amniotomy for shortening spontaneous labour. Cochrane Database of Systematic Reviews 1996, Issue 2. Art. No.: CD000015. DOI: 10.1002/14651858.CD000015.pub2