Diverticular disease is not common in
**Core Concept**
Diverticular disease is a condition characterized by the formation of diverticula, which are small, bulging pouches in the wall of the colon. It is often associated with a low-fiber diet, constipation, and increased intraluminal pressure. The condition can lead to complications such as diverticulitis, diverticular bleeding, and obstruction.
**Why the Correct Answer is Right**
The correct answer is related to the epidemiology of diverticular disease. Diverticular disease is relatively rare in certain populations, particularly those with a high-fiber diet and adequate fluid intake. In these groups, the risk of developing diverticula is lower due to the softer and more regular stool, which reduces the intraluminal pressure on the colonic wall.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because diverticular disease is not uncommon in Western countries, where a low-fiber diet is prevalent.
**Option B:** This option is incorrect because diverticular disease can occur in anyone, regardless of age, sex, or ethnicity.
**Option C:** This option is incorrect because diverticular disease is not exclusive to developed countries, as it can also occur in developing countries with a low-fiber diet.
**Clinical Pearl / High-Yield Fact**
A high-fiber diet (>30g/day) can help prevent diverticular disease by promoting regular bowel movements, softer stool, and reduced intraluminal pressure.
**Correct Answer:** C.