Prostate Volume Measurement via High-Resolution Ultrasound (HWL)
This test measures the size of your prostate gland using ultrasound imaging, often performed during a digital rectal exam or as part of a prostate-specific antigen (PSA) evaluation.
["Assessing prostate size helps guide further testing or treatment options."]
Key facts at a glance
- LOINC
- 15308-0
- Short code
- Volume Prostate from HWL
- Synonyms
- Volume Prostate from HWL
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-derived-hwl
- 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?
Doctors may order prostate volume measurement to monitor prostate growth, evaluate symptoms like frequent urination or difficulty urinating, or assess risk for conditions like benign prostatic hyperplasia (BPH) or prostate cancer. It can also help determine if additional tests or treatments are needed.
How Is the Test Performed?
A healthcare provider uses ultrasound technology to create detailed images of your prostate. You’ll likely lie on your side or back, and the provider may insert a small, lubricated probe into your rectum to capture clear images. The procedure is quick and generally painless.
What Should You Expect Before or After the Test?
No special preparation is usually needed, but you may be asked to empty your bladder beforehand. After the test, you may feel mild discomfort or pressure in your lower abdomen or rectum. Rest and drink plenty of fluids afterward.
What Do the Results Mean?
Results are expressed in cubic centimeters (cc) or milliliters (mL). A larger prostate volume may suggest conditions like BPH, while very small volumes could raise concerns about potential issues. Your doctor will interpret results in the context of your symptoms and overall health.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Prostate Volume
Frequently asked questions
How often will I need this test?
Can I avoid this test if I don’t have symptoms?
Will this test affect my PSA levels?
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