Q 5yrs: If asymptomatic most people should have colorectal screening every 5 yrs starting at age 40. If symptomatic such as with losing wt., change in bowel habit, developing a new inguinal hernia over age 40 (increased intra abdominal pressure) and evidence of blood in stool one should get checked for colon cancer which is on the increase especially in younger people.
Answered 11/15/2014
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