AI reveals 10 clues of early colon cancer

Jan 13, 2026

Description

In this video, I break down the 10 earliest warning signs of colorectal cancer, ranked from least to most common.

The 10 early signs are:

  • Nausea and vomiting (5-10% of cases)

  • Mucus in stool (10-15%)

  • Persistent abdominal bloating/distension (15-20%)

  • Unintentional weight loss (15-20%)

  • Pencil-thin stools (25-30%)

  • Abdominal pain/cramping (25-30%)

  • Fatigue (30-40%)

  • Tenesmus - feeling of incomplete bowel evacuation (30-40%)

  • Persistent change in bowel habits (50-60%)

  • Blood in stool (60-90%)

Remember that these symptoms can be caused by other conditions like hemorrhoids, IBS, or inflammatory bowel disease. Some early-stage colon cancer patients may have no symptoms at all, which is why screening is crucial. Current guidelines recommend colonoscopy screening starting at age 45 for average-risk individuals.

I also compare different AI models to see which provides the most accurate medical information on this topic.