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Worm or Insect Eggs in Stool (Qualitative)

Published: August 9, 2026Updated: August 17, 2026

This test checks for the presence of worm or insect eggs in your stool, helping identify infections caused by parasites.

Quick summary

["A stool test for eggs from parasites like worms or insects can help diagnose infections early."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
10672-4
Short code
Worm+Insect Spec
Synonyms
Worm+Insect Spec
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
0
Ref high
17
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects microscopic eggs or larvae from parasites such as roundworms, tapeworms, pinworms, or other insects. It does not measure parasite levels or activity—only whether eggs are present.

Why It’s Done

Your doctor may order this test if you have symptoms like stomach pain, diarrhea, weight loss, or itching (especially at night), or if you live in an area with high parasite risk. It’s also used for routine screening in certain populations.

Sample Collection

You’ll need to provide a fresh stool sample (preferably collected in the morning) in a sterile container. Follow your healthcare provider’s instructions for proper collection to ensure accurate results.

What to Expect

The test is quick and painless. Results are typically ready within 1–3 business days. If eggs are found, your doctor may recommend further testing or treatment.

Reference range

NCBI: NSE 0-17 ng/mLN/A

Specimen: serum

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Eggs in Stool (Qualitative)

Frequently asked questions

Finding worm or insect eggs confirms a parasitic infection, which can cause serious health issues like malnutrition, anemia, or even organ damage. Early treatment prevents complications and improves recovery.
This test helps confirm a diagnosis but does not replace other tests (like blood work) if symptoms are unclear. False negatives may occur if the sample isn’t collected correctly or if eggs aren’t present during testing.
How long does it take to get results?
Results are usually available within 1–3 days, depending on lab processing times. Your doctor will contact you if additional testing is needed.
Can I take antibiotics before the test?
No, avoid antibiotics unless prescribed by your doctor, as they may interfere with the test. Follow your provider’s instructions for timing around medications.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy