how do u know if u have colon cancer?

Hello and welcome to e health forum.

Colon cancer usually is seen in elderly individuals (5th or 6th decade of life). The most common signs and symptoms that ‎can be seen include - abdominal pain, blood in stool, weight ‎loss, anorexia, diarrhea, fatigue, weakness, constipation.‎

Some factors that may increase the risk of colon cancer include: Older age (90% cases in people over 50 years, African-‎American race, family and past history of colorectal cancer or polyps, Inflammatory bowel disorders, Inherited ‎syndromes (familial adenomatous polyposis and Lynch syndrome) . Low-fiber, high-fat diet, diets high in red meat, A ‎sedentary lifestyle, Diabetes, Obesity, Smoking, Alcohol and Radiation therapy for cancer. ‎

In case, you do have any of the above issues, then you may need to consult a doctor for a proper examination and further advice.