High-Risk Groups and Genetic Surveillance
For individuals in "High-Risk" categories, standard screening timelines do not apply. If you have a first-degree relative (parent or sibling) diagnosed with colon cancer before age 60, screening typically begins at age 40, or 10 years before the age your relative was diagnosed.
Genetic syndromes like Lynch Syndrome or FAP require much more aggressive surveillance, often beginning in the teenage years or early 20s. For these groups, the colonoscopy is usually the only recommended test, as stool-based options are not sensitive enough to manage their significantly elevated risk.
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