Griffin was 44 when doctors discovered that a 4.3-centimeter tumor had broken through the wall of her sigmoid colon, the part of the large intestine that connects to the rectum. The Hamilton ...

They will insert the sigmoidoscope through the rectum and pass it into your sigmoid colon. The doctor will use a small amount of air to expand the colon to see the colon walls. You may feel mild ...

Some people have a sigmoid colon that’s a bit longer than usual, which is a normal variation in human anatomy, she adds. “I was always told I had a long colon,” Grenham recalls.