This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2017, Subject name: Gynaecology & Obstetrics
A 25 year old lady presented with curdy white discharge from vagina is likely to be suffering from:- 
Select and explain. 
A. Gonococcal vulvovaginitis, B. Candida vaginitis, C. Trichomoniasis, D. Chlamydia trachomatis
B: Candida vaginitis
Answer: B: Candida vaginitis 
Explanation: Vaginitis Bacterial vaginosis Candidiasis Trichomonas vaginitis Organism Gardnerellavaginosis Candida Trichomonas vaginalis M/C PH >4.5 <4.5 >4.5 STD Not an STD Not an STD usually STD M/C Complaint Foul smelling Diy white discharge Intense purities curdy white cottage cheese like discharge Profuse frothy greenish yellow discharge IOC Saline microscopy clue cells are seen Saline microscopy pseudohyphae seen Saline microscopy typical motile flagellated trichomonas seen Gold standard investigation Amsler's criteria nugent scoring SDA medium Diamond media DOC Metronidazole Fluconazole Metronidazole Whift test (10%KOH to discharge) (+) (-) May be (+) or (-) due to its association with bacterial vaginosis