7- Abdominal Pain
Many people have abdominal pain at some point in their lives, and like many symptoms, it can seem minor. It is a common symptom of many noncancerous conditions, such as hemorrhoids and irritable bowel syndrome and many others. However, abdominal pain that began recently and is severe and long-lasting can be a sign of colon cancer. Colon cancer occurs in the large intestine, which can affect bowel habits. This change in bowel habits can lead to cramping, bloating and abdominal pain and could be an indicator of colon cancer.