Cannabis Use Linked to Male Fertility Decline

Recent attention to men's fertility highlights the potential adverse impacts of cannabis use, including medical marijuana. Experts caution that chronic and heavy cannabis consumption can negatively affect male reproductive health by altering reproductive hormones and semen parameters. This can manifest as decreased sperm counts, reduced sperm mobility, and an increase in malformed sperm, as suggested by several studies. Research indicates that frequent cannabis use is associated with significantly lower sperm concentration and total sperm count.

To mitigate these risks, specialists recommend that men planning to conceive should cease cannabis use. Discontinuing use for at least three months prior to conception is advised to allow the body to produce a full cycle of healthy sperm. While human evidence on cannabis's impact on fertility remains mixed, early research suggests that the negative effects may be reversible once cannabis use is stopped. The American Society for Reproductive Medicine also advises avoiding recreational drugs for those trying to conceive.