My 29-year-old son had a stomach ache that wouldn't go away. He was diagnosed with stage 4 colon cancer and died 6 months later.

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Andrew Reaster
Andrew Reaster was diagnosed with stage 4 colon cancer in January 2025 after a prolonged stomach ache.

Kathy Lemoine

A 31-year-old marathon runner thought she had norovirus. She was diagnosed with stage 3 colon cancer.

Tech Insider : Business
Katelyn Jonozzo
Katelyn Jonozzo, 31, had no symptoms of colon cancer and regularly ran marathons.

Katelyn Jonozzo

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