Does Smoking Weed Cause Erectile Dysfunction?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 22nd, 2026.
Marijuana use can contribute to erectile dysfunction through multiple mechanisms. Cannabis affects blood flow by constricting blood vessels, which is essential for achieving and maintaining erections. Regular use may also lower testosterone levels by up to 25% according to some studies. The psychoactive effects can interfere with sexual arousal and performance anxiety. Additionally, chronic smoking of any substance damages cardiovascular health, further impacting erectile function. Men who use marijuana daily are 3 times more likely to experience ED compared to non-users. However, occasional use may have less impact than chronic consumption.
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