Most common site of genital TB is :
**Core Concept**
Genital tuberculosis (TB) is a form of extrapulmonary TB that affects the reproductive organs, primarily the fallopian tubes, uterus, and ovaries in females, and the epididymis, testes, and seminal vesicles in males. The disease is caused by Mycobacterium tuberculosis, which can spread to the genital tract through hematogenous dissemination from a primary focus, such as the lungs.
**Why the Correct Answer is Right**
The most common site of genital TB in females is the fallopian tubes, which accounts for approximately 70% of cases. This is due to the rich blood supply and the proximity of the fallopian tubes to the pelvic lymph nodes, which can harbor the tubercle bacilli. The fallopian tubes become inflamed and fibrotic, leading to tubal obstruction and infertility. In males, the epididymis is the most commonly affected site, followed by the testes and seminal vesicles.
**Why Each Wrong Option is Incorrect**
**Option A:** Ovaries - While the ovaries can be affected in genital TB, they are not the most common site.
**Option B:** Uterus - The uterus is occasionally involved in genital TB, but it is less common than the fallopian tubes.
**Option C:** Cervix - The cervix is rarely affected in genital TB.
**Clinical Pearl / High-Yield Fact**
Genital TB can mimic other conditions such as endometriosis, pelvic inflammatory disease, and ovarian torsion, making it essential to consider TB in the differential diagnosis of pelvic pain and infertility in women, especially those with a history of pulmonary TB.
**Correct Answer: C.