6. Pencil-Thin Stools
While variations in stool shape and consistency are normal, a persistent change to pencil-thin stools may indicate a partial blockage in the colon caused by a tumor. This occurs when the growth narrows the intestinal passage, restricting the stool’s size. If this change is noticed consistently over time, it warrants medical attention.
7. Unexplained Lower Back Pain
While back pain is commonly associated with musculoskeletal issues, persistent, unexplained lower back pain could also be a sign of advanced colon cancer. A growing tumor in the lower colon or rectum can cause referred pain in the back or pelvis. Additionally, if the cancer has spread to the spine or surrounding tissues, it may contribute to ongoing discomfort.
8. Nausea and Vomiting Without an Obvious Cause
If a tumor in the colon is causing a blockage, it may lead to chronic nausea and vomiting. This occurs when the digestive system struggles to pass waste through the intestines. If these symptoms persist, especially when combined with bloating and abdominal pain, they should not be ignored.
9. Sudden Food Aversions
Food aversions, particularly to certain meats or fatty foods, can sometimes be an indicator of gastrointestinal cancers, including colon cancer. The body may instinctively reject certain foods due to underlying changes in digestion and metabolism caused by the disease.
10. Dark or Tarry Stools
While visible red blood in stool is a well-known warning sign of colorectal cancer, dark or tarry stools may indicate the presence of digested blood, signaling bleeding higher up in the colon. Many people mistake this for dietary changes or medications, such as iron supplements, but persistent black stools should prompt further medical evaluation.
Leave a Comment