Heavy marijuana smoking may increase cancer risk, researchers warn
Recent studies from Keck Medicine of USC suggest a potential link between heavy marijuana use and an increased risk of lung, head, and neck cancers. Researchers emphasize that while the correlation is growing, the specific dose-response relationship remains unclear.
As marijuana becomes legal in more states, many people assume it is relatively safe. But when it comes to cancer, the picture is far less clear. While tobacco smoking has long been established as a major cause of lung cancer, scientists are still working to understand exactly how marijuana affects cancer risk, according to Brooks Udelsman, MD, a thoracic surgeon with USC Surgery at Keck Medicine of USC.
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