True about acute epididymitis is –
**Core Concept**
Acute epididymitis is an inflammatory condition of the epididymis, often caused by bacterial infections, which can lead to fever, pain, and swelling in the scrotum. This condition is commonly associated with sexually transmitted infections (STIs) in young adults and non-gonococcal urethritis in older men.
**Why the Correct Answer is Right**
The correct answer is related to the common cause of acute epididymitis. In young adults, the most common cause is Chlamydia trachomatis, an STI that can ascend from the urethra to the epididymis. This is due to the direct extension of infection from the urethra to the epididymis through the vas deferens. In contrast, older men are more likely to develop epididymitis due to non-gonococcal urethritis, which is often caused by Escherichia coli (E. coli).
**Why Each Wrong Option is Incorrect**
* **Option A:** This option may be incorrect as it does not specify the common cause of acute epididymitis in young adults.
* **Option B:** This option may be incorrect as it does not mention the age-specific cause of epididymitis.
* **Option C:** This option may be incorrect as it does not provide a clear cause of acute epididymitis.
**Clinical Pearl / High-Yield Fact**
It is essential to remember that the cause of acute epididymitis differs between young adults and older men. Young adults are more likely to develop epididymitis due to Chlamydia trachomatis, while older men are more likely to develop it due to non-gonococcal urethritis, often caused by E. coli.
**Correct Answer:** C.