The principal route by which Mycobacterium tuberculosis reaches the female genital tract in genital tuberculosis is:
- A Ascending spread from an infected bladder
- B Direct sexual transmission from an infected partner
- C Haematogenous spread from a primary focus, usually pulmonary ✓
- D Contiguous lymphatic spread from intestinal lesions alone
Correct answer: C. Haematogenous spread from a primary focus, usually pulmonary
Explanation
Genital tuberculosis is almost always secondary, reaching the tubes through the bloodstream from a primary focus, most often the lung, typically reactivating around puberty or first exposure. Direct venereal transmission of genital TB does not occur in practice, which eliminates option B. Lymphatic and direct contiguous routes exist but are minor pathways, and the primary focus may be pulmonary, peritoneal, or other rather than exclusively intestinal.
Reference: Shaw's Textbook of Gynaecology, 18th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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