They say health professionals should ensure they only give women the help and advice that is relevant to them - so if they have not had a Caesarean or a birth involving stitches, they do not need any information on those topics.
Others are accused of being too hasty in opting for an emergency caesarean even though a natural birth may still be possible, perhaps for fear of litigation.
As a result, when they become pregnant again, they often cannot face the prospect of a vaginal birth and want to have their baby by Caesarean section instead.
But doctors also remember the fetal heart monitor, introduced with great enthusiasm in the 1970s as a way to cut down on birth injuries by alerting doctors to fetal distress in time to remove the baby via Caesarean section.