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Stool Worm and Insect Egg Count (Qualitative)

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

This test checks for the presence of eggs or larvae from parasites like worms or insects in your stool. It helps identify infections that may require treatment.

Quick summary

["A simple stool test to detect parasitic infections that could affect your health."]

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

Key facts at a glance

LOINC
14788-4
Short code
Worm+Insect Spec Rearing/Cult
Synonyms
Worm+Insect Spec Rearing/Cult
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
Method
rearing-culture
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 looks for eggs or larval stages of common intestinal parasites, such as those from roundworms, tapeworms, pinworms, or other soil-transmitted helminths. It does not measure parasite activity or quantity but confirms their presence.

Why It’s Done

Your doctor may order this test if you have symptoms like persistent diarrhea, abdominal pain, unexplained weight loss, or if you’ve traveled to areas with higher parasite risks. It’s also used as a screening tool for children or individuals in high-risk groups.

Sample Collection

You’ll need to provide a fresh stool sample (usually collected in a special container) to ensure the test detects eggs or larvae accurately. Follow your healthcare provider’s instructions for proper sample handling.

What to Expect After the Test

Results are typically ready within a few days. If parasites are found, your doctor will discuss next steps, which may include medication or further testing. Follow-up may be needed to confirm treatment effectiveness.

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.

Positive results indicate a parasitic infection that could cause malnutrition, chronic diarrhea, or other health issues. Early treatment prevents complications and improves recovery. Negative results mean no parasites were detected in this sample, but infections can sometimes be intermittent, so retesting may be advised.

Short name

Worm/Insect Egg Screening

Frequently asked questions

How often should I get this test?
This test is usually done once if symptoms or risk factors are present. If you’re in a high-risk area or have recurring symptoms, your doctor may recommend retesting after treatment or periodically.
What does a positive result mean?
A positive result means parasites were found in your stool. This doesn’t specify which parasite, so your doctor will guide further steps, such as additional tests or treatment options.
Can I take antibiotics before the test?
No, avoid antibiotics or anti-parasitic medications before testing unless directed by your doctor. These can interfere with the test results and mask an infection.
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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