The sensitive issue with abdominal is another sign a person may be having colon cancer. Every day, the patient is suffering from the significant abdominal discomfort. It’s not even necessary to have a meal to feel like bloating. Other features include regular pelvic suffering and stomach pain. Sometimes the patients have problems with gas and belching. Only a good health care professional may detect whether it’s really a colon cancer as many other disorders have this symptom.