**Core Concept**
Hydrocele is a collection of fluid in the tunica vaginalis of the testis, most commonly due to patent processus vaginalis in infants. The management depends on the size and type (congenital or acquired), with surgical interventions like Lord's plication or Jaboulay’s eversion used for medium-sized hydroceles.

**Why the Correct Answer is Right**
Congenital hydroceles in infants typically resolve spontaneously by age 1–2 years due to closure of the patent processus vaginalis. A 5-year wait is not evidence-based and may lead to complications such as testicular atrophy or discomfort. The spontaneous resolution rate drops significantly after 2 years, and surgical intervention is often required beyond that period. Thus, waiting 5 years is false and inappropriate.

**Why Each Wrong Option is Incorrect**
Option A: A patent processus vaginalis is the primary cause of congenital hydrocele, especially in infants. This is correct and true.
Option C: Lord’s plication is a surgical technique used for small hydroceles, where the sac is folded and sutured to prevent fluid accumulation. This is a valid and appropriate method.
Option D: Jaboulay’s eversion is performed for medium-sized hydroceles, involving eversion of the sac to allow fluid drainage and prevent recurrence. This is a recognized surgical approach.

**Clinical Pearl / High-Yield Fact**
Congenital hydroceles resolve spontaneously in 90% of cases by age 2 years. After 2 years, surgical management is recommended to avoid complications. Never wait beyond 2 years—5 years is a myth and incorrect.

✓ Correct Answer: B. Wait for 5 years for spontaneous closure of congenital hydrocele