An athelete came to casuality with 3 days history of passing red colour urine.most propable cause of red colour urine in this condition is-
**Core Concept**
The athlete's presentation of passing red-colored urine for 3 days is suggestive of a condition involving the kidneys or urinary tract. Hematuria, the presence of blood in the urine, can be caused by various factors, including trauma, infection, or damage to the kidneys or urinary tract.
**Why the Correct Answer is Right**
The most likely cause of hematuria in this athlete is a **renal contusion**, which is a bruise of the kidney tissue. This condition can occur due to a direct blow to the flank or kidney area, causing damage to the renal cortex and resulting in hematuria. The presence of blood in the urine is a classic sign of renal contusion, and it is often associated with a history of trauma.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided.
* **Option B:** While urinary tract infections can cause hematuria, they are less likely to present with a sudden onset of red-colored urine and a history of trauma.
* **Option C:** Renal stones can cause hematuria, but they are less likely to present with a sudden onset of red-colored urine and a history of trauma.
* **Option D:** This option is not provided.
**Clinical Pearl / High-Yield Fact**
In cases of suspected renal contusion, it is essential to obtain a thorough history of the injury, including the mechanism and force of the blow, and to perform a physical examination to assess for signs of trauma.
**Correct Answer: C. Renal contusion.