This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Diagnosis of bacterial vaginosis by microscopy of vaginal discharge is suppoed by all of the following, EXCEPT: 
Select and explain. 
A. Absence of lactobacilli, B. Presence of clue cells, C. Abundance of polymorphs, D. Abundance of gram positive coccobacilli
C: Abundance of polymorphs
Answer: C: Abundance of polymorphs 
Explanation: Microscopy in bacterial vaginosis shows: Clue cells in wet mount Decreased number of lactobacilli Increased number of gardnerella vaginalis POLYMORHS ARE CONSPICUOUSLY ABSENT Ref: GYNECOLOGICAL DIAGNOSIS Shaw 15 th edition page: 131-132.