Swab (Vulval)
A vulval swab test detects infections affecting the external genital skin. It is used when symptoms such as itching, soreness, or irritation are present.
Turnaround time
2 days
Biomarkers count
1
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Details about Swab (Vulval)
What is the Vulval Swab Test?
A vulval swab test involves collecting a sample from the external genital area (vulva) using a sterile swab. The sample is analysed in a laboratory to identify bacterial, fungal, or other infectious organisms affecting the skin and surrounding tissue.
This test is commonly used to detect conditions such as candidiasis (thrush), bacterial infections, inflammatory-related infections, and organisms contributing to vulval irritation or recurrent symptoms. It focuses on the external genital area rather than the vagina or cervix.
Vulval swab testing is particularly useful when symptoms are localised to the vulva and require precise identification of the cause.
Why do I need a Vulval Swab test?
Vulval symptoms can be caused by infections, skin conditions, or irritation, many of which present with similar signs. Laboratory testing helps distinguish infectious causes from non-infectious conditions.
You may need this test if you experience:
- Vulval itching or burning
- Redness or swelling of the vulva
- Pain or tenderness
- Skin irritation or soreness
- Recurrent thrush-like symptoms
- Discharge affecting the external genital area
- Symptoms not improving with initial care
Testing supports accurate diagnosis and appropriate clinical follow-up.
Benefits of the test
- Targeted external genital testing
Samples the vulval skin directly where symptoms occur. - Identifies fungal and bacterial infections
Helps detect common causes such as Candida and bacterial pathogens. - Differentiates infection from skin conditions
Supports distinction between infectious and inflammatory causes. - Useful for recurrent symptoms
Helps investigate repeated or persistent vulval issues. - Quick and minimally invasive
The swab procedure is brief and generally well tolerated. - Supports symptom clarification
Helps explain itching, soreness, or irritation. - Guides further medical evaluation
Clear results support appropriate next steps. - Reduces diagnostic uncertainty
Provides laboratory confirmation rather than assumption.
Step-by-step: How we offer testing
Clinic-based testing (UK-wide)
- Choose your nearest UK clinic
- Attend your appointment
- A clinician performs the vulval swab
- Sample is sent to the laboratory
- Results are issued once analysis is complete
Home or hotel visit (+£60, UK-wide)
- Book a mobile clinician
- Vulval swab taken at your home or hotel
- No clinic visit required
- Sample securely transported to the laboratory
Your results explained
Negative (no infection detected)
- No clinically significant organisms identified
- UK standard: Not detected / no growth
- Suggests symptoms may be non-infectious
Low-level growth / colonisation
- Small quantities of organisms detected
- UK standard: Low growth / commensal flora
- May represent normal skin organisms
Positive (infection detected)
- Pathogenic organism identified
- UK standard: Organism reported by name
- Indicates active vulval infection
How It Works
Simple steps to get your results
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Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
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WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.