Ova and Parasite Urine Test
This page explains the ova and parasite urine test, what it measures, and how to arrange it. The Ova and Parasite (O&P) Urine Test examines a urine sample for parasites or their eggs (ova). It is usually ordered when a person has symptoms like diarrhea, abdominal pain, or unexplained fatigue, especially after travel to areas where parasitic infections are common.
- Sample type
- urine
- Category
- General Wellness
- Turnaround
- 1-3 business days
- Price
- $158
- Referral
- Not required
The Ova and Parasite (O&P) Urine Test examines a urine sample for parasites or their eggs (ova). It is usually ordered when a person has symptoms like diarrhea, abdominal pain, or unexplained fatigue, especially after travel to areas where parasitic infections are common.
What it measures
- Parasite ova (eggs) — Tiny eggs released by adult worms; their presence suggests a parasitic infection.
- Parasite larvae — Early life stages of certain worms; finding them can confirm an active infection.
- Protozoa (single-celled parasites) — Microscopic organisms such as Giardia or Trichomonas; some can cause urinary symptoms.
- White blood cells — Immune cells that may increase when the body is fighting an infection.
- Red blood cells — Blood cells that may appear if parasites irritate the urinary tract.
Who it is for
This test is typically ordered by a primary care clinician, infectious disease specialist, or urologist when a parasitic infection is suspected based on symptoms, travel history, or exposure risk.
Preparation
No fasting or special preparation is usually required. You may be asked to provide a clean-catch urine sample, preferably the first morning sample, but follow your clinician's instructions.
Results and what they mean
Results are reported as positive or negative for specific parasites, ova, or other findings. A positive result means the parasite was seen; a negative result does not always rule out infection. Only a clinician can interpret these results in the context of your health. This is general information, not medical advice.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the ova and parasite urine test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Is this test painful?
No. It only requires collecting a urine sample in a sterile cup, which is painless.
How accurate is the urine O&P test?
Accuracy depends on the parasite and sample quality. Sometimes multiple samples or other tests are needed.
Can I get a parasitic infection from my pets?
Some parasites can spread from pets, but most urinary parasites come from contaminated food or water. Talk to your clinician about your risk.
What should I do if my result is positive?
Contact your clinician. They will explain what the result means and whether any follow-up or treatment is needed.