How Cannabis Use May Be Accelerating Breast and Testicular Cancer Rates in AYAs - Summary - MDSpire
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How Cannabis Use May Be Accelerating Breast and Testicular Cancer Rates in AYAs

“The evidence from our study implicates cannabis as a potential etiologic factor contributing to the rising incidence of breast cancer in young females and testis cancer in older adolescent and young ...

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Recent research highlights a significant rise in breast and testis cancer incidences among adolescents and young adults (AYAs) aged 15 to 39, increasing by 30% over the last four decades. Factors such as obesity and lifestyle are known contributors; however, a new study suggests a correlation between this surge and rising cannabis use among AYAs. Led by Dr. Rebecca H. Johnson, the study analyzed data from various states and Canada to show that cancer rates are sharply increasing in regions with legalized cannabis. It emphasizes the urgent need for further investigation into cannabis as a potential carcinogen.

Original Source(s)

How Cannabis Use May Be Accelerating Breast and Testicular Cancer Rates in AYAs

  • by Jo Cavallo

  • April 9, 2026

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