Trichomoniasis Testing
The Trichomoniasis Testing screens for a sexually transmitted infection using modern laboratory methods. Background: Trichomoniasis is a sexually transmitted infection (STI) caused by a parasite. It spreads from person to person during sex. Many people do not have any symptoms. If you do get symptom
Content last reviewed 2026-09-12 · Educational information — not medical advice
What is the Trichomoniasis Testing?
The Trichomoniasis Testing screens for a sexually transmitted infection using modern laboratory methods.
Background: Trichomoniasis is a sexually transmitted infection (STI) caused by a parasite. It spreads from person to person during sex. Many people do not have any symptoms. If you do get symptoms, they usually happen within 5 to 28 days after being infected. It can cause vaginitis in women. Symptoms include: Yellow-green or gray discharge from the vagina Discomfort during sex Vaginal odor Painful urination Itching burning, and soreness of the vagina and vulva Most men do not have symptoms. If they do, they may have: Itching or irritation inside the penis Burning after urination or ejaculation Discharge from the penis Trichomoniasis can increase the risk of getting or spreading other sexually transmitte…
How the Trichomoniasis Testing works
Depending on the infection, testing uses either a small blood sample (for HIV, syphilis, hepatitis, herpes antibodies) or a urine sample/swab amplified with NAAT (nucleic acid amplification), the most sensitive method for chlamydia and gonorrhea.
Typical turnaround: 1-3 business days
Typical partner pricing: $59
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Why healthcare providers order it
STI testing is recommended for anyone sexually active with new or multiple partners, during pregnancy, before starting PrEP, when a partner is diagnosed, or whenever symptoms appear. Many infections are silent — routine screening catches them before complications and onward transmission.
Interpreting your results
Understanding STI test results
- Negative / non-reactive: no evidence of infection — but respect window periods: each infection has a span after exposure during which tests may not yet detect it. Retesting after the appropriate interval is standard practice after a known exposure.
- Reactive / positive: requires professional follow-up. Confirmatory testing applies to HIV and syphilis screens. Treatment exists for every bacterial STI here, and partner notification/treatment prevents reinfection.
- Equivocal: repeat per protocol.
CDC-recommended screening intervals apply regardless of symptoms for sexually active people under 25 and others at increased risk.
Reference intervals vary by laboratory, instrument, age, sex, and — for hormones — collection time. Always compare your value against the range printed on your own report, and review results with a qualified healthcare professional who knows your history. This guide is educational and does not diagnose.
Understanding your lab report
- Find the reference interval printed beside your value on the report — that pairing defines 'normal' for this lab run.
- Preparation affected this sample: Follow the lab's instructions. — mention deviations from instructions when reviewing results.
- Note the units. mmol/L vs mg/dL, ng/mL vs µg/L — numbers mean nothing across unit systems.
- Look at flags (H/L) but read the degree: barely-outside values behave differently than multiples of the limit.
- Trends outrank snapshots. A series of results tells your provider far more than any single draw.
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Frequently asked questions
What does the Trichomoniasis Testing measure?
It looks for direct molecular evidence of the infection or the antibodies your body produces against it.
Do I need to prepare for the Trichomoniasis Testing?
Follow the lab's instructions. When in doubt, ask the drawing laboratory — preparation errors are a leading avoidable cause of unusable results.
How soon do Trichomoniasis Testing results come back?
This test's typical turnaround is 1-3 business days, counted from the laboratory's receipt of your sample. Complex or send-out assays can take longer.
Can an abnormal Trichomoniasis Testing result mean something serious?
Most infections covered here are curable or manageable, and a reactive result warrants prompt professional follow-up plus partner notification.
How soon after exposure will the Trichomoniasis Testing detect infection?
Every infection carries a 'window period' before tests turn reliably positive — days for gonorrhea/chlamydia NAAT, roughly 2–6 weeks for syphilis and combination HIV assays. Testing immediately after a known exposure misses early cases, so scheduled repeat testing is the standard advice.
Sources & data provenance
- MedlinePlus — 'Trichomoniasis' (https://medlineplus.gov/trichomoniasis.html)
- Family-specific guidance compiled from standard clinical laboratory medicine references