Screening is meant for people who feel well.
Having no symptoms does not show that the colon is free of precancer or cancer.
Before symptoms appear.
Polyps and colorectal cancer can be present without symptoms. Screening looks for disease before you notice a problem; colonoscopy can also remove detected precancer.
Does this apply to me?
Routine screening usually starts at 45 for average-risk adults without symptoms. Prior screening, personal or family history, and health can change the plan. Symptoms require their own evaluation at any age.
Colonoscopy First interpretation
Feeling well is a reason screening can be timely.
When you are due and colonoscopy is appropriate, its opportunity to find and remove precancer belongs in the decision. Do not wait for symptoms to start that conversation.