11. Narrowing of Stool Consistency Over Time
Beyond pencil-thin stools, pay attention to a gradual change in stool consistency that progresses over weeks or months. This might start as slightly narrower stools that become progressively thinner, indicating a slowly narrowing passage in the colon.
This progressive narrowing is a strong indicator of a tumor gradually blocking the colon's diameter. Unlike sudden changes, this gradual progression is sometimes easier to dismiss but is actually quite significant. Keep mental notes of changes in your stool and report any gradual narrowing pattern to your physician.
10. Frequent Urges to Have Bowel Movements
A sudden increase in the frequency of bowel movements without dietary changes can signal colon problems. This includes a persistent urge to go to the bathroom more often than your baseline, even when you have nothing to pass.
This occurs because a tumor can irritate the colon, triggering more frequent contractions and the sensation of needing to evacuate. If you find yourself making more trips to the bathroom than usual—especially during the day or night—and this persists beyond a few days, it's a potential warning sign.
9. Unexplained Fever or Chills
While less common, low-grade fever or unexplained chills can occur with advanced colon cancer or when infection develops around a tumor. A persistent fever (typically under 101°F) that doesn't respond to typical illness treatments warrants investigation.
This symptom often appears when the cancer is more advanced or when the body's immune response to the tumor intensifies. If you experience fever without typical cold or flu symptoms, especially when combined with other gastrointestinal concerns, seek medical evaluation promptly.
