Prevention of Colon Cancer

Colon cancer is one of the most preventable major cancers - because it grows slowly from polyps and because screening removes those polyps. Prevention has three floors: screening, lifestyle, and family awareness.

Floor 1: Screening (the powerhouse)

• Average risk: start at 45 - stool blood tests (FIT) yearly or a colonoscopy every 10 years
• Colonoscopy is special: it does not just find cancer early, it PREVENTS cancer by removing polyps on the spot
• Family history of colon cancer or polyps: start 10 years before the youngest relative's diagnosis (or at 40), with colonoscopy as the method
• Known Lynch syndrome or FAP families: specialist surveillance from young adulthood - these families save lives by knowing their status
• Long-standing ulcerative colitis or Crohn's colitis: regular surveillance colonoscopy

Floor 2: Lifestyle

• Eat the fiber plate: vegetables, fruits, whole grains, dals daily
• Keep red meat occasional; avoid routine processed meat
• Move: 30+ minutes of daily activity measurably lowers risk
• Keep weight in range; do not smoke; keep alcohol light
• Manage diabetes well

Floor 3: Symptom vigilance

Blood in stool, a persistent change in bowel habit, unexplained anemia or weight loss after 45: evaluated promptly, not assumed to be piles. Prevention includes catching early disease - the stage-I numbers are the reward.

Aspirin - the honest footnote

Regular low-dose aspirin reduces colon cancer risk in some groups but carries bleeding risks of its own. It is a doctor conversation for specific high-risk people - never a self-started prevention.

One-line summary

Screen from 45 (earlier with family history), eat fiber, move daily, skip processed meat and smoking, and investigate warning signs promptly - colon cancer is the preventable cancer.