What causes metastatic or recurrent colorectal cancer?
The exact cause is not known, but the cancer is more likely to come back or spread if it is in a later, more advanced stage when it is first discovered. What are the symptoms? Some people do not have any symptoms. When they do occur, the most common symptoms are: • Belly pain, especially gas pains, cramps, or a feeling of fullness. • Blood in your stool or very dark stools. • A change in your bowel habits, such as more frequent stools, thinner stools, or a feeling that your bowels are not emptying completely. • Loss of appetite. • Losing weight without trying. • Constant tiredness (fatigue). If your cancer has spread, you may have other symptoms, depending on where the cancer is. If it has spread to: • The lymph nodesof your belly, it may cause bloating, a swollen belly, loss of appetite, or a feeling of fullness. • The liver, it may cause pain on the upper right side of your belly, bloating, loss of appetite, or a feeling of fullness. • The lungs, it may cause you to cough, spit up bl