Anatomy of the colon and rectum
![The colon and rectum and where they are in the body The colon and rectum and where they are in the body](/sites/default/files/healthwise/images/h9991263_001.jpg)
The large intestine (colon) extends from the cecum to the anus and includes the ascending colon, the transverse colon, the descending colon, the sigmoid colon, and the rectum.
Colon cancer site
![Cancer in the wall of the descending colon Cancer in the wall of the descending colon](/sites/default/files/healthwise/images/h9991263_002.jpg)
Cancer is shown in a section of the descending colon.
Colon section removed
![Possible stoma sites Possible stoma sites](/sites/default/files/healthwise/images/h9991314_001.jpg)
Surgery removes the section of colon that contains cancer.
Remaining colon attached to create a stoma
![A stoma for a colostomy A stoma for a colostomy](/sites/default/files/healthwise/images/h9991314_002.jpg)
The surgeon connects the end of the remaining section of the colon to an opening made in the skin. This creates a stoma.
Colostomy pouch in place
![A colostomy bag positioned on the stoma A colostomy bag positioned on the stoma](/sites/default/files/healthwise/images/h9991314_003.jpg)
Body waste passes from the colon through the stoma into a colostomy pouch (or bag), which is taped to your body.
Current as of: November 30, 2022
Author: Healthwise Staff
Medical Review:
E. Gregory Thompson MD - Internal Medicine
Brian D. O'Brien MD - Internal Medicine
Kathleen Romito MD - Family Medicine
Kenneth Bark MD - General Surgery, Colon and Rectal Surgery
Current as of: November 30, 2022
Author: Healthwise Staff
Medical Review:E. Gregory Thompson MD - Internal Medicine & Brian D. O'Brien MD - Internal Medicine & Kathleen Romito MD - Family Medicine & Kenneth Bark MD - General Surgery, Colon and Rectal Surgery