Diverticula
The plural of diverticulum.
As a person ages, pressure within the large intestine (colon) causes pockets of tissue (sacs) that push out from the colon walls.
A small bulging sac pushing outward from the colon wall is a diverticulum.
Diverticula can occur throughout the colon but are most common near the end of the left side of the colon, the sigmoid colon.