My dad was diagnosed with early Stage II colon cancer at 54; 20 years later it came back Stage IV with metastasis to his liver. He survived the 2nd surgery but never left the hospital after acquiring a common staph infection that shut down his kidneys.
My brothers and I promised each other to be diligent with our testing, and in the 17 years my dad has been gone, I've had 4 colonoscopies. My colonoscopies are done by the same Dr. who took care of my dad, and he understands my concern.
Once I reached 54, I started asking for testing every 3 years. My Dr. always tells me to just call the office when I'm ready for the next one, and I do.
Both brothers are keeping their promise and testing every 5 years.