Unfortunately, the most common symptom of colon cancer is having no symptom at all, which is why regular screening via colonoscopy is critical.

The symptoms of colon cancer may resemble other conditions like infections, hemorrhoids and inflammatory bowel disease. But if you experience any of the following symptoms, speak to your doctor about scheduling a screening, especially if you have a personal or family history of cancer or colon polyps:

• A change in bowel habits: diarrhea, constipation, or stool consistency changes
• Narrow, “pencil-thin” stools
• Rectal bleeding: blood in your stool on more than one occasion
• Persistent, abdominal discomfort, such as cramps, bloating, or pain
• A feeling that your bowel doesn’t completely empty
• Sudden, unexplained weight loss or loss of appetite
• Constant fatigue