Change in stool frequency
A constant change in in stool frequency is an alarming sign of colon cancer So, for example, if a person has three bowel movements per day, and suddenly he or she is now passing stool once per day, this is sign of constipation. Unusual frequency of bowel movements or change in typical bowel habits can be a potential sign of colon cancer. Ask for help from your doctor immediately after experiencing any of these change in bowel habits.