Study: Marijuana Consumption Linked to Increased Sperm Count

Men who have consumed marijuana have higher sperm counts than those who have never used it, according to a new study published in the February 6th issue of the journal Human Reproduction.

This longitudinal study “included 662 subfertile men enrolled at the Massachusetts General Hospital Fertility Center between 2000 and 2017.” The men “provided a total of 1143 semen samples; 317 men also provided blood samples in which we measured reproductive hormones.”

Researchers found that “Men who had ever smoked marijuana had higher sperm concentration and count and lower serum FSH [follicle stimulating hormone] concentrations than men who had never smoked marijuana; no differences were observed between current and past marijuana smokers.”

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