During National Infertility Awareness Week, US specialists highlight research linking heavy cannabis use to lower sperm count and quality, with up to 45% of infertility cases involving male factors.
Studies show men who smoke cannabis more than once a week may have up to 29% lower sperm count, and combining marijuana with other drugs can reduce counts by over 50%.
Experts recommend men stop cannabis use at least three months before trying to conceive, noting that negative effects may be reversible. Nearly 52.5 million Americans used cannabis in 2021, according to CDC data.
Could a man's cannabis use be the hidden cause of his partner's miscarriage?
Can quitting cannabis for three months truly reverse its damage to male fertility?
With THC potency tripling, are today's cannabis users facing unprecedented reproductive dangers?
Why did a new study find cannabis boosts male hormones if it harms fertility?
Beyond fertility, what permanent changes does cannabis make to a man's DNA?