50 Years or Older? Get Screened. By LeShea Agnew • Mar 8, 2013 ShareTwitter Facebook Google+ Email Listen Listening... / 0:57 Credit news.legalexaminer.com March is Colon Cancer Awareness Month and local doctors are reminding residents of the importance of getting screened. According to the CDC, more than 90% of cases occur in people who are 50 years old or older. Tags: colonawarenesscancerCDCRochester General HealthView the discussion thread.