Babies whose mothers underwent surgery before pregnancy have an increased risk of opioid withdrawal symptoms at birth, according to a new study done by Dr. Nathalie Auger, researcher at the University of Montreal Hospital Research Centre (CRCHUM), and published in the Canadian Medical Association Journal.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/surgery-before-pregnancy-linked-to-higher-risk-of-opioid-withdrawal-in-babies