SIGNS AND SYMPTOMS 
History
- Description and duration of symptoms
- Description of discharge, if any
- Timing with regard to menses
- Sexual history of patient and partners
- Sexual practices
- Hygienic practices
- Use of oral contraceptives and/or antibiotics
- Likelihood of pregnancy
- Other symptoms (e.g., abdominal pain; must rule out pelvic inflammatory disease [PID])
Physical Exam
- Abdominal exam to assess for tenderness
- Inspection of vulva, vaginal os, perineal area
- Speculum and bimanual exam
ESSENTIAL WORKUP 
- Pelvic exam
- Saline and KOH wet prep of vaginal discharge
DIAGNOSIS TESTS & INTERPRETATION 
Lab
- β-human chorionic gonadotropin (β-hCG)
- pH of discharge with Nitrazine paper:
- Normal in premenopauseal adults: < 4.5
- > 4.5: BV, trichomoniasis
- pH normal in candidiasis
- Saline wet prep of discharge:
- Clue cells: BV
- Motile flagellated protozoa: Trichomoniasis
- Presence of polymorphonuclear leukocytes
- Potassium hydroxide (KOH) wet prep of discharge:
- Pseudohyphae, budding yeast: Candidiasis
- KOH prep "Whiff" test:
- Amine or "fishy" odor suggests BV, trichomoniasis.
- Trichomonas Rapid Test:
- Point-of-care test
- Immunochromatographic dipstick
- PIP test card for BV:
- Point-of-care test
- Detects proline aminopeptidase
- Nucleic acid probe test for Trichomonas, G. vaginalis, and Candida albicans
- Gram stain:
- Large, gram-positive rods: Lactobacilli (normal flora)
- Small, gram-variable coccobacilli and curved rods: Gardnerella, Prevotella, Mobiluncus (BV)
- Vaginal culture:
- Gardnerella: Not routinely recommended
- Candida: Recommended for recurrently symptomatic patients
- Trichomoniasis: Gold standard
- Endocervical swab for gonorrhea (cultureThayerMartin media; DNA probe; amplification techniquesPCR/LCR) and chlamydia (DNA probe or amplification techniquesPCR/LCR)
- Viral cultures for HSV, DFA, or Tzanck smear for multinucleated giant cells if ulcers or vesicles are present
- Urinalysis/urine culture if c/o dysuria
- Rule out sexually transmitted infections:
- GC/Chlamydia testing
- Consider RPR to rule out syphilis.
- Discuss HIV testing.
Imaging
N/A unless fistula is suspected.
DIFFERENTIAL DIAGNOSIS 
[Outline]
DISPOSITION 
Admission Criteria
Discharge Criteria
Most can be discharged. Follow-up in ~1 wk is suggested.
Issues for Referral
- Vaginal discharge and vaginitis can be safely managed as an outpatient by the patient's primary physician or gynecologist:
- Suggested follow-up in 1 wk
FOLLOW-UP RECOMMENDATIONS 
- Recommend good hygiene
- Advise patient to return to the ED or see her doctor if:
- Symptoms do not resolve in 35 days
- Abdominal pain or cramping
- Fever or chills
- Pain during sexual intercourse
- Lower back or flank pain
- Difficulty urinating or urinary frequency
[Outline]