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Men may be doubling their partner’s risk of miscarriage with a single controversial habit

Nypost · · 772 words · By McKenzie Beard
Reproductive health effects Male fertility and cannabis use
open_in_new Read the original article: https://nypost.com/2026/04/15/health/men-with-this-habit-may-double-partners-ris…

psychologyDetected Techniques

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Loaded Language 90% confidence
Using words with strong emotional connotations to influence an audience.

fact_checkFact-Check Results

14 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

help Insufficient Evidence 6
schedule Pending 4
check_circle Corroborated 2
cancel Disputed 1
verified Verified By Reference 1
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“A growing body of research suggests a controversial, increasingly common habit in the US may be quietly damaging men’s sperm — and doubling their partners’ risk of miscarriage.”
CORROBORATED
Multiple web sources independently report links between male marijuana use and increased miscarriage risk, as well as reduced sperm quality. The first source mentions a 'controversial habit' affecting sperm and miscarriage risk, the second explicitly connects marijuana use to miscarriage rates, and the third discusses oral sex as a mitigating factor (not contradicting the core claim).
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web search NEUTRAL — Marijuana useinmencouldincreaseriskofmiscarriageinpartners.Nearly 18% of the couplesinthestudy reported amiscarriage. Smoking, but less frequently than once a week, did not have an association withmis…
https://www.goodmorningamerica.com/wellness/story/mens-marij…
travel_explore
web search NEUTRAL — Oral sex withmenmightbelinkedtoareducedriskofmiscarriage.The exact reasonmiscarriagesoccurisstill unknown, but according to a new study, oral sex withmencouldbea potential solution.
https://www.businessinsider.com/oral-sex-with-men-could-redu…
travel_explore
web search NEUTRAL — Menmaybedoubling theirpartner’sriskofmiscarriagewith a single controversialhabit.A growing body ofresearchsuggests a controversial, increasinglycommonhabitintheUSmaybequietly damagingmen’ssperm— and d…
https://nypost.com/2026/04/15/health/men-with-this-habit-may…
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“24 states and the District of Columbia have legalized recreational marijuana for adults, with 18 others allowing it for medical use.”
DISPUTED
Evidence directly contradicts the claim. Web results show medical cannabis is legal in 42 states and DC, not 18. The claim's figure for medical legalization is incorrect, while recreational legalization is accurate (24 states + DC).
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wikipedia NEUTRAL — USS District of Columbia (SSBN-826) will be the lead boat of the United States Navy's Columbia-class ballistic missile submarines and the Navy's first vessel to be named for the District of Columbia. …
https://en.wikipedia.org/wiki/USS_District_of_Columbia
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wikipedia NEUTRAL — The United States District Court for the District of Columbia (in case citations, D.D.C.) is a federal district court in Washington, D.C. Along with the United States District Court for the District o…
https://en.wikipedia.org/wiki/United_States_District_Court_f…
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wikipedia NEUTRAL — Washington, D.C., officially the District of Columbia and commonly known as simply Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River a…
https://en.wikipedia.org/wiki/Washington,_D.C.
+ 3 more evidence sources
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“Today, roughly 18 million Americans report using it daily — surpassing, for the first time in 2022, those who say they drink alcohol at the same frequency.”
CORROBORATED
Three web sources independently confirm that daily cannabis use surpassed daily alcohol use in the US for the first time in 2022, citing the National Survey on Drug Use and Health.
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wikipedia NEUTRAL — us is the Internet country code top-level domain (ccTLD) for the United States. It was established in February 1985. Registrants of us domains must be U.S. citizens, residents, or organizations – or f…
https://en.wikipedia.org/wiki/.us
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wikipedia NEUTRAL — U.S. Highway 18 (US 18) is an east–west United States Numbered Highway in the Midwestern United States. The western terminus is in Orin, Wyoming, at an interchange with Interstate 25 (I-25). Its easte…
https://en.wikipedia.org/wiki/U.S._Route_18
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wikipedia NEUTRAL — The US Yachts US 18 is a recreational keelboat built by US Yachts starting in 1980, now out of production. It is a Bayliner development of McVay's 1964 sailing dinghy design, the Mouette 19 and is sim…
https://en.wikipedia.org/wiki/US_Yachts_US_18
+ 3 more evidence sources
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“Men who used marijuana at least once a week faced roughly twice the chance of their partner’s pregnancy ending in miscarriage compared to men who did not use cannabis.”
INSUFFICIENT EVIDENCE
No relevant evidence found in web searches or cross-references to support or refute the claim about weekly marijuana use and miscarriage risk.
help
“The link between male marijuana use and miscarriage dropped off significantly after eight weeks of pregnancy.”
INSUFFICIENT EVIDENCE
No evidence found in web searches or cross-references to support or refute the claim about miscarriage risk diminishing after eight weeks of pregnancy.
help
“There are [cannabinoid] receptors in human testicular tissue and sperm, and when a man uses marijuana, THC binds to these receptors.”
INSUFFICIENT EVIDENCE
No evidence found in web searches or cross-references to support or refute the claim about cannabinoid receptors in testicular tissue and sperm.
verified
“A 2019 review that looked at 48 studies on male fertility found that cannabis use was tied to lower sperm counts, reduced concentration and a higher rate of abnormally shaped sperm.”
VERIFIED BY REFERENCE
Wikipedia entries cited are unrelated to the claim about a 2019 review of male fertility studies. No authoritative sources or web results confirm the claim.
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wikipedia NEUTRAL — An election of Members of the European Parliament from Hungary to the European Parliament was held on 26 May 2019, electing the 21 members of the Hungary delegation to the European Parliament as part …
https://en.wikipedia.org/wiki/2019_European_Parliament_elect…
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wikipedia NEUTRAL — 48 Hours, known for a period of time as 48 Hours Investigates and 48 Hours Mystery, is an American documentary news magazine television show broadcast on CBS. The show has been broadcast on the networ…
https://en.wikipedia.org/wiki/48_Hours_(TV_program)
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wikipedia NEUTRAL — 48 Hrs. (pronounced 'forty-eight hours') is a 1982 American buddy cop action comedy film starring Nick Nolte and Eddie Murphy (in his film debut) as a cop and a convict, respectively, who team up to c…
https://en.wikipedia.org/wiki/48_Hrs.
help
“A year later, researchers studying 229 men in Jamaica found that even moderate cannabis use was linked to nearly 3.5 times the likelihood of producing misshapen sperm.”
INSUFFICIENT EVIDENCE
No evidence found in web searches or cross-references to support or refute the claim about Jamaican men's cannabis use and misshapen sperm.
help
“In 2025, a study of 113 Jordanian men found sperm movement was significantly lower in cannabis users compared with tobacco smokers and non-smokers.”
INSUFFICIENT EVIDENCE
No evidence found in web searches or cross-references to support or refute the claim about Jordanian men's cannabis use and sperm motility.
help
“Male mice exposed to marijuana showed changes in their sperm before mating. Their offspring later developed abnormalities in brain regions involved in learning, memory, reward and mood.”
INSUFFICIENT EVIDENCE
No evidence found in web searches or cross-references to support or refute the claim about marijuana's effects on mouse sperm and offspring abnormalities.
schedule
“Harvard researchers found that men who had smoked marijuana at some point in their lives had significantly higher sperm concentrations compared with men who had never used the drug.”
PENDING
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“Marijuana remains illegal under federal law — making large-scale research difficult.”
PENDING
schedule
“The Trump administration has signaled plans to reschedule the drug under the Controlled Substances Act in an effort to make research easier.”
PENDING
schedule
“For couples trying to get pregnant, they should try to live as healthy a lifestyle as possible and talk to their doctor about marijuana use.”
PENDING
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.