Quick Answer

Trichomoniasis is diagnosed by detecting the parasite Trichomonas vaginalis in a sample from the vagina, urethra, or urine. Testing methods include a rapid antigen test, nucleic acid amplification test (NAAT), or a wet mount microscopic exam. NAAT is the most accurate and is recommended by the CDC.

  • NAAT is the most sensitive test for trichomoniasis, detecting the parasite's DNA.
  • A wet mount is quick but misses about half of infections, especially in women.
  • Rapid antigen tests give results in about 10 minutes but are less sensitive than NAAT.
  • Testing is recommended for anyone with symptoms and for routine screening in some groups.
  • A positive test means you have the infection and should be treated with metronidazole or tinidazole.
  • You can get tested at a clinic, doctor's office, or with an at-home test kit.

The Short Version, Structured

Trichomoniasis is a common sexually transmitted infection caused by a microscopic parasite. Many people have no symptoms, so testing is the only way to know for sure. The parasite can be found in vaginal fluid, urethral discharge, or urine. Understanding how tests work, when to get tested, and what results mean helps you take the right next step. Early diagnosis and treatment with antibiotics cure the infection and reduce the risk of passing it to partners.

Related Questions

⚕️ This page is educational and does not replace advice from a licensed clinician. If you may have been exposed to an STI, get tested — most infections are manageable, and many are fully curable.

Sources & Further Reading

Figures reflect CDC surveillance and WHO estimates; they are population statistics, not personal risk predictions.