In this guide
Colon cancer can sometimes develop from colon polyps over years. Screening and timely colonoscopy can help detect polyps, bleeding sources, inflammation or cancer risk before symptoms become severe.
Key Takeaways
- Blood in stool or black stool
- Change in bowel habits
- Unexplained anemia
- Unexplained weight loss
- Persistent abdominal pain
Warning symptoms
Symptoms do not always mean cancer, but they should be evaluated, especially if persistent or unexplained.
- Blood in stool or black stool
- Change in bowel habits
- Unexplained anemia
- Unexplained weight loss
- Persistent abdominal pain
- Family history of colon cancer or polyps
What are colon polyps?
Polyps are growths in the colon. Many are harmless, but some types can become cancerous over time. Suitable polyps may be removed during colonoscopy.
When colonoscopy is discussed
The doctor may advise colonoscopy for bleeding, anemia, chronic bowel changes, suspected colitis, screening age, family history or abnormal imaging.
Preparation and safety
Good bowel preparation is essential for clear visualization. Patients should discuss diabetes medicines, blood thinners and attendant needs before colonoscopy.