5 Alarming Red Flags That Could Signal Colon Cancer

A fourth red flag is unexplained weight loss. Losing weight without trying may seem positive at first, but when it occurs unexpectedly, it can sometimes indicate an underlying medical condition. Cancer cells can alter metabolism and trigger inflammatory responses that affect the body's ability to maintain weight. If weight loss is significant and cannot be explained by changes in diet or exercise, medical evaluation is recommended.

Fatigue and weakness can also be important clues. Chronic blood loss from a tumor may gradually reduce iron levels, leading to anemia. People with anemia often feel tired, weak, short of breath, or less able to perform everyday activities. Because these symptoms develop gradually, they are sometimes attributed to aging, stress, or a busy lifestyle rather than an underlying health issue.

It is important to remember that having one or more of these symptoms does not automatically mean someone has colon cancer. Many other conditions can produce similar signs. Nevertheless, persistent symptoms should be evaluated, especially in adults over age 45 or individuals with a family history of colorectal cancer, inflammatory bowel disease, or certain genetic conditions.