Research finds link between marijuana use and testicular cancer

11/8/17–New research from Northern Medical Program Professor Dr. Russ Callaghan has found that use of marijuana is associated with the development of testicular cancer. As part of a retrospective study, Dr. Callaghan and his team looked at data from young men conscripted for military service in Sweden in 1969 and 1970, and tracked their health conditions over the following 42 years. They found that heavy cannabis use (defined as more than 50 times in a lifetime, as measured at conscription) was associated with a 2.5-fold increased risk of developing testicular cancer. Read