How accurate is a PSA test?

How accurate is a PSA test?

Mark Vogel (Board Certified Urologist) gives expert video advice on: When should I have a PSA test?; What does a PSA level indicate?; What factors can increase or decrease PSA levels? and more...

One of the controversies about the use of PSA to detect prostate cancer is its wide variations. Sometimes it varies in different labs or with the local factors such as recent prostate exams or recent sexual activity.