July 10, 2014: Study Links Vasectomy to Aggressive Prostate Cancer
But the finding doesn't prove cause-and-effect; urologists call for more research

October 15, 2013: Did Recession Lead to Increase in Vasectomies?
Wisconsin researchers found link between economy and procedure rates, but another expert says it's not proof

June 11, 2010: After Vasectomy, Single Test Might Give All-Clear
Any remaining sperm appear to be inconsequential, study finds

March 23, 2009: With the Economy Down, Vasectomy Rates Are Up
The expense of raising another child may be driving the trend, doctors say