Megan Campbell had heard all the warnings. Friends told her an epidural might harm her baby. Online forums were full of scary stories. So when she went into labor in Edinburgh, she hesitated — and says the pain nearly broke her. "I wish someone had just told me: it's safe," she said afterward.

Now, a massive new study from Scotland offers exactly that reassurance. Researchers looked at nearly half a million births and found no link between epidurals and harm to newborns — not brain injury, not breathing problems, not deadly infections, and not cerebral palsy years later.

The study, published in The BMJ, tracked 495,695 births across Scotland over 13 years, from 2007 to 2019. About one in four mothers received an epidural during labor. The researchers compared babies whose mothers had epidurals to those who didn't, accounting for factors like the mother's age, health conditions, and how early the baby was born.

The results were clear: serious health problems in newborns were rare, affecting fewer than 1 in every 1,000 babies. And these problems occurred at the same rate whether or not the mother had an epidural. There was no increased risk of neurological conditions, severe illness, infection, poor Apgar scores (a routine test of a newborn's health), death within the first month, or cerebral palsy diagnosed later in childhood.

Epidurals work by delivering pain-relieving medicine through a tiny tube placed near the nerves in the mother's back. They are one of the most effective ways to manage labor pain, and some research suggests they may even reduce complications for mothers after birth.

The study authors acknowledged their research has limits. All participants were in Scotland, and most were white, so findings may not apply equally to more diverse populations or different healthcare systems. As an observational study, it cannot prove that epidurals directly cause no harm — only that no connection was found.

Still, researchers said the large size of the study and its long follow-up period through childhood strengthen the findings. Results held even when looking specifically at high-risk pregnancies and premature births.

"These results should reassure parents and clinicians that epidural analgesia use in labor is safe for babies," the authors wrote.

For Megan Campbell, that message comes too late. But for the millions of women who will give birth in coming years, researchers hope this study finally puts the old fears to rest.