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MBBS QUESTION #10206
Question 1
A varicocele (dilation of the pampiniform venous plexus) occurs more frequently on the left side. This is best explained by which anatomical feature of testicular venous drainage?
  • The left testicular vein drains at a right angle into the left renal vein, increasing resistance to venous outflow✔️
  • The right testicular vein drains directly and at a disadvantage into the inferior vena cava
  • The left testicular vein is anatomically shorter than the right
  • The right testicular vein characteristically lacks venous valves
Correct Answer Explanation
The left testicular vein drains at a right angle into the left renal vein (a higher-pressure, less favorable drainage route), whereas the right testicular vein drains obliquely and directly into the inferior vena cava — a key anatomical reason why varicoceles are far more common on the left.