Vaginal pH (Qualitative Probe Measurement)
This test measures the acidity or alkalinity of vaginal fluids using a simple probe. It helps assess vaginal health and can indicate potential infections or hormonal balance changes.
["A vaginal pH test helps monitor vaginal health and spot early signs of imbalance."]
Key facts at a glance
- LOINC
- 54144-1
- Short code
- T vaginalis DNA Vag Ql Probe+sig amp
- Synonyms
- T vaginalis DNA Vag Ql Probe+sig amp
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-sig
- CPT
- 82784
- 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 Is This Test Done?
Your healthcare provider may order a vaginal pH test to check for changes in vaginal acidity. This can help diagnose conditions like bacterial vaginosis, yeast infections, or other infections that alter vaginal pH levels. It may also be used during pregnancy or before certain medical procedures to ensure vaginal health.
What to Expect During the Test
The test is quick and painless. A small probe is inserted into the vagina to measure the pH level. No special preparation is needed, but you may want to avoid douching or using vaginal products 24 hours before the test.
What Does a Vaginal pH Test Tell You?
A normal vaginal pH is typically between 3.8 and 4.5. A higher pH (more alkaline) may suggest bacterial vaginosis, while a lower pH (more acidic) could indicate yeast infections or other conditions. Your provider will interpret the results in the context of your overall health and symptoms.
Common Conditions This Test Helps Identify
This test is often used to diagnose or monitor conditions such as bacterial vaginosis, candidal vaginitis (yeast infections), and other vaginal infections. It can also help guide treatment decisions and track progress during therapy.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Maintaining a healthy vaginal pH is crucial for preventing infections and ensuring proper vaginal function. Abnormal pH levels can disrupt the natural balance of bacteria and yeast in the vagina, leading to discomfort, itching, or unusual discharge. Regular monitoring can help prevent complications and ensure timely treatment when needed.
Short name
Vaginal pH
Frequently asked questions
How Often Should I Get This Test?
What Are the Possible Results?
Does This Test Hurt?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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