After U.S. guidelines advised against routine tests, declines in prostate cancer screening have been sharper among primary care doctors than urologists, according to a new study that suggests the medical community remains divided over the best way to look for these tumors. In late 2011, the U.S. Preventive Services Task Force (USPSTF), a government-backed panel of independent physicians, recommended against routine prostate cancer tests for all men. They cited concerns that widespread screening often caught harmless tumors that didn't need treatment and led to unnecessary procedures with side effects like impotence and incontinence.