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Bacterial vaginosis — USMLE Step 3 MCQ

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EasyAmbulatory Medicine / Primary CareBacterial vaginosisUSMLE Step 3

A 30-year-old woman has thin gray vaginal discharge with a fishy odor after intercourse. Pelvic examination shows no cervical motion tenderness. Vaginal pH is 5.5 and wet mount shows clue cells. Which of the following is the most likely diagnosis?

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Correct answer: ABacterial vaginosis

Thin malodorous discharge, elevated pH, and clue cells are classic for bacterial vaginosis.

Reference: CDC STI Treatment Guidelines