The possibility of testicular cancer: A 2015 study published by BMC Cancer found that “current, chronic and frequent cannabis use is associated with the development of [testicular germ cell tumors].” Doctors were quick to point out that this does not mean that marijuana causes cancer and also noted that testicular cancer is a very rare condition; however, an epidemiologist at the Fred Hutchinson Cancer Research Center in Seattle warned that the relationship between cannabis and the risk of testicular cancer suggests that marijuana carries more risks than immediately evident.
