Trichomonas vaginalis

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Background

Wet mount of trichomonas. Note oval/pear shape with conspicuous flagella.
  • considered an STI
  • Associated with preterm birth, PID, cervical cancer, increased transmission of other STIs
    • inflammation of vaginal leads to increased HIV susceptibility [1]

Clinical Features

  • Yellow/green, malodorous vaginal discharge
  • Vaginal erythema or edema
    • "Strawberry Cervix" on speculum examination.

Differential Diagnosis

Vulvovaginitis

Sexually transmitted diseases

Evaluation

  • Wet mount shows mobile trichomonads

Management

Non-Pregnant

Pregnant

Only treat if the patient is symptomatic and avoid breast feeding until 24-hrs after last dose

Sexual Partner Treatment

Men

Disposition

  • Outpatient

See Also

References

  1. Mavedzenge SN, Pol BV, Cheng H, Montgomery ET, Blanchard K, de Bruyn G, Ramjee G, Straten Av. Epidemiological synergy of Trichomonas vaginalis and HIV in Zimbabwean and South African women. Sex Transm Dis. 2010 Jul;37(7):460-6. doi: 10.1097/OLQ.0b013e3181cfcc4b. PubMed PMID: 20562586.
  2. Workowski KA, Bachmann LH, Chan PA, et al. Sexually Transmitted Infections Treatment Guidelines, 2021. MMWR Recomm Rep 2021;70(No. RR-4):1–187. DOI: http://dx.doi.org/10.15585/mmwr.rr7004a1external icon
  3. CDC Trichomoniasis 2015. https://www.cdc.gov/std/tg2015/trichomoniasis.htm
  4. Workowski KA, Bachmann LH, Chan PA, et al. Sexually Transmitted Infections Treatment Guidelines, 2021. MMWR Recomm Rep 2021;70(No. RR-4):1–187. DOI: http://dx.doi.org/10.15585/mmwr.rr7004a1external icon