Skip to content

Urine squamous cell carcinoma antigen (SCC antigen) screening

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

This test measures a protein found in high levels when there may be abnormal squamous cells in your urine, which could be linked to bladder or urethral cancer.

Quick summary

["Helps detect early signs of squamous cell cancer in the urinary tract."]

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

Key facts at a glance

LOINC
12258-0
Short code
Squamous UrnS Ql Micro
Synonyms
Squamous UrnS Ql Micro
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
microscopy-light
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test looks for squamous cell carcinoma antigen (SCC antigen), a protein produced by certain types of cancer cells. While SCC antigen is most strongly associated with bladder cancer, it can also appear in other squamous cell cancers, such as those in the urethra or prostate (in men). This protein may also be present in non-cancerous conditions like chronic bladder inflammation or infection.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like blood in urine, frequent urination, pain during urination, or if you’re at higher risk for bladder cancer due to factors like smoking, long-term catheter use, or exposure to certain chemicals.

Who Might Need This Test

This screening is often considered for individuals with symptoms of urinary tract issues or those at increased risk for squamous cell cancer, though it is not a standard screening test for all cancer types.

What to Expect Before the Test

No special preparation is needed. You’ll provide a urine sample, typically collected in a clean container at home or during a clinic visit. Follow any specific instructions your provider gives you to ensure accurate results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine SCC Antigen

Frequently asked questions

This test is not a definitive cancer diagnosis but can help identify potential concerns that may require further evaluation, such as imaging studies or biopsies. Elevated levels may prompt additional testing to investigate underlying causes.
Elevated SCC antigen levels could signal bladder cancer or other squamous cell cancers, but they can also be caused by infections, inflammation, or other conditions. Results should always be reviewed by a healthcare provider.
What does a positive result mean?
A positive result means your SCC antigen level is higher than expected. This may raise concerns about cancer or other conditions affecting your urinary tract, so your doctor will likely order more tests to determine the cause.
How often should I get this test?
The frequency depends on your symptoms, risk factors, and medical advice. If you have a history of bladder cancer or other risk factors, your doctor may recommend periodic screening. Otherwise, this test is not routinely recommended for healthy individuals without symptoms.
  1. 1
  2. 2
  3. 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.

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