They found men with only one of the genetic variants have a 50 percent increase in prostate cancer risk. But men who have four or five of the risky genes have more than a 400 percent chance of prostate cancer than men without the variants.
Researchers are so struck by the findings that a university lab plans to offer blood test for these genes in the near future.
Experts say while these findings may lead to a useful gene test soon, it's not ready yet.
