**Core Concept**
Injury to the male urethra below the perineal membrane can lead to urine accumulation in a specific part of the perineum due to the anatomical location of the urethra and its surrounding structures. This type of injury typically results in a condition known as urethral stricture or urethral rupture.

**Why the Correct Answer is Right**
When the male urethra is injured below the perineal membrane, urine can accumulate in the **sponge space** of the perineum. The sponge space, also known as the superficial perineal pouch, is a fascial space located between the superficial and deep perineal layers. This space contains the superficial perineal muscles, the bulb of the penis, and the crura of the penis. The accumulation of urine in this space can lead to swelling and pain in the perineal area.

**Why Each Wrong Option is Incorrect**
* **Option A:** The deep perineal pouch is not the correct location for urine accumulation after a urethral injury below the perineal membrane. The deep perineal pouch, also known as the deep perineal space, is located between the perineal membrane and the urogenital diaphragm.
* **Option B:** The ischiorectal fossa is not directly related to the location of the male urethra or its injury. The ischiorectal fossa is a fat-filled space located between the anal canal and the ischial tuberosities.
* **Option D:** The penile space is not a recognized anatomical location for urine accumulation after a urethral injury. The penile space is not a distinct fascial space.

**Clinical Pearl / High-Yield Fact**
* The **sponge space** is a critical area for examination in cases of suspected urethral injury or stricture. A high-riding prostate or a bulge in this area can indicate urine accumulation and the need for further evaluation.

**Correct Answer: C.**