<prompt> A sexually active female presented with complains of a milky, homogenous, malodorous fishy odour, non irritating discharge. Clue cells are seen microscopically from the vaginal discharge. Clue cells are seen in:Bacterial vaginosisCandidiasisTrichomoniasisGonorrhoea  <response>: Presence of clue cells 20 of epithelial cells on microscopy is one of the diagnostic criteria of bacterial vaginosis. Clue cells are identified as numerous stippled or granulated epithelial cells. This appearance is caused by the adherence of G vaginalis organisms to the edges of the vaginal epithelial cells. Ref: Bornstein J. 2013. Chapter 39. Benign Disorders of the Vulva Vagina. In A.H. DeCherney, L. Nathan, N. Laufer, A.S. Roman Eds, CURRENT Diagnosis Treatment: Obstetrics Gynecology, 11e. 