Trichomoniasis Test
A highly accurate molecular test that detects Trichomonas vaginalis, the parasite that causes the most common curable STI in the world.
Select Lab Partner
This test is only available through Quest Diagnostics
What this test measures
Trichomoniasis is caused by infection with Trichomonas vaginalis, a microscopic protozoan parasite that spreads through sexual contact. This test uses advanced nucleic acid amplification technology (NAAT) to detect genetic material from the parasite with exceptional accuracy. Unlike older testing methods like microscopy, which can miss many infections, this molecular approach can identify even small amounts of the parasite's genetic material in urine samples.
The test specifically looks for ribosomal RNA from Trichomonas vaginalis, making it significantly more sensitive than traditional wet mount microscopy or culture methods. CDC estimates show that more than two million Americans had trichomoniasis in 2018, but about 70% of infected people don't experience any symptoms. This makes testing particularly important, as many people unknowingly carry and transmit the infection to their sexual partners.
Who should consider this test
You might consider this test if you are experiencing any of the following:
- People experiencing unusual discharge, genital itching, burning during urination, or pelvic discomfort
- Individuals who have had unprotected sex with new or multiple partners
- Those whose partner has been diagnosed with trichomoniasis or another STI
- Women experiencing symptoms that could indicate bacterial vaginosis or other vaginal infections
- People seeking comprehensive STI screening as part of routine sexual health care
- Individuals in high-risk settings or communities where trichomoniasis is more common
- Anyone who wants confidential testing without the need to discuss symptoms with a healthcare provider
What to expect
Preparation
No special preparation needed. For urine testing, avoid urinating for at least 1 hour before collection. Do not use genital deodorants or douches for 24 hours before testing as these can interfere with results.
Sample Type
Simple urine collection in a sterile container - specifically the first part of urination (first-void urine) which tends to have the highest concentration of organisms if present
Collection
Walk into any Quest Diagnostics location with your test order. Present valid ID and provide the urine sample. The entire process typically takes just a few minutes.
Turnaround
Results are typically available within 1-3 business days and will be securely delivered to your online account
Understanding your results
A positive result indicates the presence of nucleic acid from Trichomonas vaginalis and strongly supports a diagnosis of trichomoniasis. A negative result suggests no infection was detected, but should be interpreted alongside symptoms and clinical history. This molecular test has very high sensitivity and specificity, meaning it rarely misses infections or gives false positive results. The lab report will clearly indicate whether Trichomonas vaginalis RNA was detected or not detected.
| Population | Reference Range | Notes |
|---|---|---|
| All tested individuals | Not Detected or Detected | This is a qualitative test - results are reported as positive or negative, not numerical values |
Reference ranges shown are general guidelines. Your lab report will include the specific reference range used by the laboratory that processed your sample, which is the authoritative range for interpreting your results.
What does a “Low” result mean?
Not applicable - this test reports detected vs. not detected rather than high/low values.
What does a “High” result mean?
A positive/detected result indicates active trichomoniasis infection that requires antibiotic treatment. The infection can be passed to sexual partners and may increase risk of acquiring other STIs.
Privacy & confidentiality
Your test results are completely confidential and will only be shared with you through your secure online account. Results are not shared with insurance companies, employers, or anyone else without your explicit permission. All testing is conducted at accredited laboratories that follow strict privacy protocols.
Frequently asked questions
Related tests
CPT Code: 87661
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
Select Lab Partner
This test is only available through Quest Diagnostics
Not sure if this is the right test? Contact our care team for guidance.