Which male reproductive system impairment may not always result in sterility?
The obstruction of the bulbourethral glands
A blockage in the ampulla of the vas deferens
The degeneration of the epididymis
The presence of prostatic cancer
The obstruction of the bulbourethral glands may affect the reproductive system, but it doesn't always make a person sterile. While it can impact semen quality, it doesn't directly affect the production or transportation of sperm. Therefore, fertility may still be possible even with this obstruction. However, it's important to seek medical advice for a proper evaluation and management of any reproductive system issues.Hence, the correct answer is option 1.