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Vaginal and Genital Swab Culture for Microbial Identification (with Antimicrobial Susceptibility Testing)

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

This test checks for bacteria, fungi, or other microbes in your vaginal or genital area. It helps identify infections and determine the best treatment.

Quick summary

["A swab culture helps diagnose infections and guide antibiotic choices."]

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

Key facts at a glance

LOINC
6566-4
Short code
T vaginalis Ag Genital Ql IA
Synonyms
T vaginalis Ag Genital Ql IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
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

Why This Test Is Done

Your healthcare provider may recommend this test if you have symptoms like unusual discharge, odor, itching, sores, or pain in the genital area. It can also be done as a routine check for certain conditions or after treatment to confirm the infection has cleared.

How the Test Is Done

A sterile swab is gently inserted into your vagina or genital area to collect a sample of fluids and cells. The swab is then sent to a lab for culture and testing.

What to Expect Before the Test

No special preparation is needed, but avoid sexual activity and douching 24 hours before the test. If you’re on antibiotics, let your provider know.

What Happens During the Test

The swabing process is quick and usually painless. You may feel slight discomfort or pressure, but it shouldn’t cause significant pain.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: This test helps diagnose infections like bacterial vaginosis, yeast infections, trichomoniasis, or sexually transmitted infections (STIs). Identifying the correct microorganism allows for targeted treatment to prevent complications, such as pelvic inflammatory disease or recurrent infections.

Short name

Vaginal/Genital Swab Culture

Frequently asked questions

How long does it take to get results?
Results typically take 3–14 days, depending on lab processing. Your provider will contact you once they’re ready.
What does a positive result mean?
A positive result means microbes were detected. This confirms an infection, which your provider will use to prescribe the best treatment (e.g., antibiotics, antifungal medication).
Can I have sex while waiting for results?
Avoid sexual contact until your infection is treated to prevent spreading it to a partner or worsening symptoms.
  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