9. Unintended weight loss should always be evaluated
Weight loss is also a common symptom in colon cancer, mainly when the tumor has already grown. This is one of the predominant alarm signs in most types of cancer, including colon cancer. However, it is an unspecific symptom and should be interpreted with care.
Unintended weight loss means losing weight without changing your physical activity levels or diet. If you lose over 10 pounds in 6 months or 5% of your body weight, talk to your doctor as soon as possible to evaluate what is happening. Cancer is a possibility, but other chronic health conditions also need to be ruled out.