Diverticula usually develop when naturally weak places in your colon give way under pressure. This causes marble-sized pouches to protrude through the colon wall. Diverticulitis occurs when diverticula tear, resulting in inflammation, and in some cases, infection.

Why does colonic diverticulosis occur?

Diverticula usually develop when naturally weak places in your colon give way under pressure. This causes marble-sized pouches to protrude through the colon wall. Diverticulitis occurs when diverticula tear, resulting in inflammation, and in some cases, infection.

Should I worry about diverticulosis?

Generally, it’s not a cause for concern. Diverticulosis by itself typically doesn’t trigger any symptoms. Rarely, diverticula may bleed, causing blood in the stool. As in your case, diverticulosis is often found during a routine colonoscopy or on an imaging exam, such as a CT scan, that’s done for another reason.