\" \" Doctors have been ordering bed rest for pregnant women since women have been getting pregnant. AdvertisementAdvertisementThe problem is, scientific evidence to support putting women to bed when pregnancy gets tricky is pretty thin. In fact, a 2013 review of recent scientific research found that not only does bed rest offer no medical benefit, there's also quite a bit of evidence that it's harmful. So, since the evidence seems pretty clear that strict bed rest is harmful and not beneficial, why do doctors prescribe it so often? \"This is unfortunate because bed rest is not a benign intervention and can have a significant social and economic burden on the patient and her family.\"