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Fungal Culture from Stool Sample

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of fungi (yeasts or molds) in your stool, helping identify infections that may require treatment.

Quick summary

["A stool fungal culture helps diagnose gastrointestinal fungal infections when other tests are inconclusive or symptoms persist."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
580-1
Short code
Fungus Spec Cult
Synonyms
Fungus Spec Cult
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
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 involves collecting a sample of your stool and growing it in a controlled environment to detect fungal organisms. This helps determine if fungi are growing in your digestive tract, which could indicate an infection.

Why It’s Done

Your healthcare provider may order this test if you have symptoms like persistent diarrhea, abdominal pain, or unexplained weight loss, especially if other tests (such as blood or imaging studies) don’t clearly explain your condition.

Preparation

No special preparation is needed. Bring the stool sample to your appointment in a clean container, ideally collected within 24 hours of testing. Follow your provider’s instructions for sample collection.

What to Expect

The sample is processed in a lab, where it is cultured to observe fungal growth over several days to weeks. Results may take time, as fungi can take time to develop in the lab environment.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Stool Fungal Culture

Frequently asked questions

How long does it take to get results?
Results typically take 3 to 14 days, depending on the lab’s processing time and whether fungal growth is observed. Your healthcare provider will discuss the results with you once they are available.
What does a positive result mean?
A positive result means fungi were detected in your stool sample. This could indicate a fungal infection, but further testing (like blood cultures or imaging) may be needed to confirm the type of infection and guide treatment.
Can I eat or drink before the test?
Yes, you can eat and drink normally before the test. However, follow your healthcare provider’s instructions if they specify any restrictions, such as avoiding certain foods or medications that could affect the sample.
  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 16, 2026. · Read our editorial policy