Normally, no yeast or trichomonas are found on the slide. White blood cells and clue cells are normally absent or very low in number. Symptoms of infections able to be diagnosed by<unk><unk> : * A vaginal yeast infection often causes a white, lumpy discharge that looks like cottage cheese. :*diagnosis is made if pseudohyphae or yeast buds are present (these are visible only 50% of the time) * Trichomoniasis causes a vaginal discharge that is yellow-green, foamy, and bad-smelling. :*Diagnosis is made if mobile trichomonads are visible on the slide A<unk>  with a clue cell at bottom left, indicating bacterial vaginosis. * Bacterial vaginosis generally produces a vaginal discharge that is thin and milky with a fishy odor. :*Diagnosis is made using Amsel Criteria - three of the four following criteria must be met: ::*>20% of the epithelial cells are clue cells (the single most reliable predictor) ::*Discharge is thin and homogeneous ::*Sample smells fishy when mixed with potassium hydroxide ("whiff test") ::*Vaginal pH is >4.5 Furthermore, presence of white blood cells is a general sign of infection.
Vaginal wet mount
High vaginal swab
Postcoital test
Vaginal ultrasonography
Sperm–cervical mucus contact test
Vaginal photoplethysmograph
Triple smear
Obstetric ultrasonography