A 30-Year-Old Paralegal Analyst Comes to Your Clinic, Complaining of a Bad-Smelling

A 30-year-old paralegal analyst comes to your clinic, complaining of a bad-smelling vaginal discharge with some mild itching, present for about 3 weeks. She tried douching but it did not help. She has had no pain with urination or with sexual intercourse. She has noticed the smell increased after intercourse and during her period last week. She denies any upper respiratory, gastrointestinal, cardiac, or pulmonary symptoms. Her past medical history consists of one spontaneous vaginal delivery. She is married and has one child. She denies tobacco, alcohol, or drug use. Her mother has high blood pressure and her father died from a heart disease. On examination she appears healthy and has unremarkable vital signs. On examination of the perineum there are no lesions noted. On palpation of the inguinal nodes there is no lymphadenopathy. On speculum examination a thin gray-white discharge is seen in the vault. The pH of the discharge is over 4.5 and there is a fishy odor when potassium hydroxide (KOH) is applied to the vaginal secretions on the slide. Wet prep shows epithelial cells with stippled borders (clue cells) . What type of vaginitis best describes her findings?

A) Trichomonas vaginitis
B) Candida vaginitis
C) Bacterial vaginosis
D) Atrophic vaginitis