pregnant woman smokes legal cannabis via a bong

Can Prenatal Exposure to Cannabis Lead to Higher Risk of Mental Health Problems?

Cannabis, otherwise known as marijuana, generally refers to the dried plant materials harvested from either the cannabis indica or cannabis sativa plant, says the National Institute on Drug Abuse. Cannabis comes in many forms, from edible brownies, and infused drinks to ingestible extracts, like oils. According to Healthline, cannabis is currently being explored for its therapeutic benefits. The two most well-studied chemical compounds in cannabis, known as cannabinoids, are tetrahydrocannabinol (THC) and cannabidiol (CBD). 

THC is associated with the psychoactive feelings of euphoria or high, while CBD is not (via Healthline). Each cannabinoid is thought to have certain therapeutic benefits. For example, THC reportedly can increase appetite and help with muscle spasticity, or glaucoma. CBD, on the other hand, can help with depression, inflammation, and seizures. Often marketed as nature’s supreme remedy, not all that glitters is gold when it comes to cannabis. While cannabis use may benefit select adults with certain medical issues, exposure to cannabis in youth and unborn children may have negative consequences on development.

Dangers of prenatal cannabis exposure

cannabis leaf

The United States Surgeon General cautions that marijuana may alter brain development in the fetus (via U.S. Department of Health and Human Services). Now, emerging evidence shows that prenatal exposure to cannabis may contribute to the development of symptoms of mental health issues. A 2024 study published in the Journal of the American Medical Association found that fetuses exposed to cannabis continue to display symptoms of mental health issues, such as anxiety and depression, into their adolescent years (per Neuroscience News). The research analysis comes from data available from a continuous study that has tracked brain development in over 12,000 American youth since 2024. 

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These findings are timely and important, as cannabis use among pregnant women has increased significantly over the last two decades, reports the National Institutes of Health. The United States Food and Drug Administration (FDA) “strongly advises” that those who are pregnant or breastfeeding do not use cannabis in any form, including CBD and THC.

Lesa O'Leary
Lesa O'Leary

Lesa is a dynamic member of OzHelp’s Service Delivery Team as the Service Delivery Team Leader and Nurse. She has been with OzHelp for five years and believes in leading by example. Lesa has experience in the not-for-profit sector, as well as many roles throughout different industries and sectors, including as a contractor to the Department of Defence. She has expertise in delivering OzHelp’s health and wellbeing programs and engaging with clients in a relaxed and comfortable manner that aligns with the organisation’s vision and objectives.

Lesa has a Certificate 4 in Nursing from Wodonga Tafe, Certificate 4 in Mental Health from Open Colleges, and is currently undertaking a Certificate 4 in Training and Assessment from Tafe NSW. For the past few months Lesa has been an Education and Memberships committee member of the ACT Branch of the National Association of Women in Construction (NAWIC).