Recently the US Preventative Task Force issued new guidelines for Doctors to follow regarding the use of PSA (prostate-specific antigen) for screening men for prostate cancer. Their recommendation came from a communication actually dated November 2009, and now recommends against routine screening by the use of the PSA blood test in all men, not just those greater than 75 years old, as the old guideline stated. This new recommendation is not supported by many in the medical community that deal with mens’ health and prostate cancer on a daily basis. Here are some of the facts surrounding this controversy. What is the prostate-specific antigen (PSA)? This a protein produced by.