Poop Changes in Advanced Colon Cancer
Stage four colon cancer typically means the disease has spread to distant organs. At this stage, symptoms such as obstruction and bleeding often become more severe. If the tumor is located on the right side of the colon, stool may appear dark and sticky (melena) due to blood mixing with digestive enzymes over time.
- Nausea and vomiting: Often occur when blockages become severe.
- Unexplained weight loss: Chronic inflammation can reduce appetite and lead to muscle loss.
In advanced cases, the bowel wall may weaken, sometimes resulting in perforation. Additional symptoms may appear if the cancer spreads to the liver, lungs, or bones. Interestingly, some individuals with advanced colon cancer may experience few bowel-related symptoms if there is no significant blockage or bleeding.
