Fact checked by Nick BlackmerFact checked by Nick Blackmer Heavy cannabis use may ... use and cancer and doesn't prove ...

A new study indicates that individuals with cannabis use disorder are up to five times more likely to develop head and neck ...

Because male infertility and poor semen quality also have been linked to an increased risk of testicular cancer, this further reinforced the researchers' hypothesis that marijuana use may be a risk ..

With the use of marijuana rising, there is concern that diagnoses of head and neck cancers could increase ... cancer development.” Using marijuana daily for years may raise the overall risk ...