Early surgery is indicated in -a) Amoebiasis peritonitisb) Biliary peritonitisc) Typhoid peritonitisd) All

**Core Concept**
Early surgical intervention is a critical aspect of managing certain types of peritonitis, particularly those caused by anatomic obstructions or perforations. In such cases, prompt surgical repair can prevent further complications and improve outcomes.

**Why the Correct Answer is Right**
The correct answer involves conditions where anatomic obstructions or perforations lead to peritonitis. Amoebiasis peritonitis (Option A) and biliary peritonitis (Option B) are both examples of conditions where early surgery may be indicated to prevent further complications. Amoebiasis peritonitis often results from a perforated amoebic ulcer, while biliary peritonitis can arise from a perforated gallbladder or bile duct obstruction. In both cases, early surgical intervention can help prevent further spread of infection and improve patient outcomes.

**Why Each Wrong Option is Incorrect**
* **Option C:** Typhoid peritonitis is typically managed conservatively with antibiotics, as surgical intervention is generally not indicated unless there is a clear anatomic obstruction or perforation.
* **Option D:** "All" is incorrect because not all types of peritonitis require early surgery. Conditions like spontaneous bacterial peritonitis or secondary peritonitis may be managed conservatively with antibiotics.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that early surgical intervention is often indicated in cases of peritonitis caused by anatomic obstructions or perforations, whereas conditions such as typhoid peritonitis or secondary peritonitis may be managed conservatively.

**Correct Answer:** D. All