Treatment of partner is required in all infection except:: (A) Candida, (B) Herpes, (C) Trichomonas, (D) Gardnerella
Answer is D. Treatment of male partners with metronidazole does not prevent recurrence of bacterial vaginosis/gardenella associated with vaginal discharge.”
Treatment of sexual partners is required in :

Candidiasis
Herpes genitalis
Trichomoniasis