Women who have had a caesarean section for a previous pregnancy are at risk of having a uterine rupture, when their caesarean scar re-opens. Uterine rupture is very serious for the woman and the baby, and induction of labour increases this risk further. There is not yet enough research to determine which method of induction is safest for a woman who has had a caesarean section before. There is also no research to say whether it is better for these women and their babies to have an elective caesarean section instead of being induced.