Diverticulosis is when pockets called diverticula form in the walls of your digestive tract. The inner layer of your intestine pushes through weak spots in the outer lining. This pressure makes them bulge out, making little pouches. Most often it happens in your colon, the lower part of your large intestine.

What is a Diverticulate?

Diverticulosis. Diverticulosis is the formation of numerous tiny pockets, or diverticula, in the lining of the bowel. ... They are most common in the lower portion of the large intestine (called the sigmoid colon). Diverticulosis is very common and occurs in 10% of people over age 40 and in 50% of people over age 60.

What does diverticulum mean in medical terms?

Diverticula are small, bulging pouches that can form in the lining of your digestive system. They are found most often in the lower part of the large intestine (colon). Diverticula are common, especially after age 40, and seldom cause problems.