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Trichomonas vaginalis infection

Guidelines

Key sources

The following summarized guidelines for the evaluation and management of Trichomonas vaginalis infection are prepared by our editorial team based on guidelines from the Center for Disease Control (CDC 2021), the American College of Obstetricians and Gynecologists (ACOG 2020), the International Union Against Sexually Transmitted Infections (IUSTI/WHO 2018), and the Society of Obstetricians and Gynaecologists of Canada (SOGC 2015). ...
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Diagnostic investigations

Initial evaluation: as per IUSTI/WHO 2018 guidelines, obtain nucleic amplification tests for the diagnosis of Trichomonas vaginalis.
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Medical management

Antibiotic therapy: as per CDC 2021 guidelines, administer metronidazole 500 mg PO BID for 7 days as first-line therapy in female patients with trichomoniasis.
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More topics in this section

  • Management of persistent/recurrent disease

  • Management of sexual partners

Specific circumstances

Pregnant patients: as per IUSTI/WHO 2018 guidelines, administer metronidazole for the treatment of trichomoniasis in pregnant patients.
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  • Patients with HIV

Follow-up and surveillance

Post-treatment testing: as per SOGC 2015 guidelines, do not obtain tests of cure following treatment of trichomoniasis with oral metronidazole.
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