Colon cancer , also known as colorectal cancer , is one of the most common types of cancer in adults. Understanding where and how it originates is key to early detection and increasing the chances of successful treatment.

What is the colon?

The colon is part of the large intestine , whose main function is to absorb water and form feces.
Parts of the colon:

Ascending colon
Transverse colon
Descending colon
Sigmoid colon
Straight

Cancer can develop in any of these areas , although it is most common in the sigmoid colon and rectum .