Skip to content

Candida Colony Count from Stool Culture (Qualitative)

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

This test checks for the presence of yeast (Candida) in your stool, which may indicate an infection or overgrowth.

Quick summary

A positive result could signal a need for further medical evaluation if symptoms like diarrhea or abdominal discomfort are present.

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

Key facts at a glance

LOINC
98395-7
Short code
CANDCOL
Synonyms
Candida colony Islt Cult-Color
Category
chemistry
Sample
serum
Container
Sterile, leak-proof specimen container or appropriate culture transport system; blood specimens collected in blood culture bottles (aerobic and anaerobic)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
≥ 0 years
Method
culture
CPT
87101
SNOMED
416852004
Specimen volume
Variable depending on specimen type: 1-10 mL for body fluids, 40-60 mL for blood culture sets (2-3 bottles), tissue samples as available
Stability
Room temperature: process within 2 hours; refrigerated (2-8°C): up to 24 hours for most specimens; blood culture bottles: per manufacturer specifications, typically stable at room temperature for several days
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
48–168 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms such as persistent diarrhea, abdominal pain, or other gastrointestinal issues that could be linked to yeast overgrowth. It’s also used in cases of suspected fungal infections, especially if other tests like blood cultures or skin scrapings are inconclusive.

What to Expect Before the Test

No special preparation is typically needed, but you may be asked to avoid certain medications (like antibiotics) that could affect the results. Bring a recent stool sample to your appointment.

What the Results Mean

A positive result means yeast (Candida) was detected in your stool. This doesn’t always mean you have an infection, but it may prompt further testing or treatment to address potential overgrowth or infection.

Common Reasons for Testing

This test is often used to diagnose conditions like candidiasis (yeast infections), particularly in people with weakened immune systems, recent antibiotic use, or chronic gastrointestinal issues.

Reference range

No growth of Candida species; Candida colony color identification reported as descriptive morphology (e.g., green, blue, pink, white, cream) when isolated from clinical cultureN/A

Specimen: serum

No special patient preparation required. Specimen should be collected aseptically prior to initiation of antifungal therapy when clinically feasible. For blood cultures, collection site must be properly disinfected.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

While stool cultures for Candida are not always definitive for infection, they can help identify potential overgrowth or colonization. Results may guide treatment decisions, especially if symptoms persist or worsen despite other therapies. Consult your provider to interpret results in the context of your health history and symptoms.

Short name

Candida Stool Culture

Frequently asked questions

What does a positive result mean?
A positive result means yeast was found in your stool, which could indicate overgrowth or infection. It doesn’t always mean you’re sick, but it may signal a need for further evaluation or treatment.
Can diet affect this test?
Yes, certain foods (like high-sugar or high-fiber diets) or medications (like antibiotics) may influence yeast levels. Your provider may ask about your diet or recent medications to help interpret results.
How long does it take to get results?
Results can take several days to a week or more, depending on lab processing. Your provider will contact you once they have the findings.
  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