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Desmoglein 3 Antibody, Serum (Qualitative Immunoassay)

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

This test measures antibodies against desmoglein 3, a protein found in the skin and mucous membranes. It helps diagnose and monitor autoimmune blistering skin conditions.

Quick summary

["This test may help identify conditions like pemphigus, a rare autoimmune disorder causing painful blisters."]

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

Key facts at a glance

LOINC
63219-0
Short code
Desmoglein 3 Ab Ser Ql IA
Synonyms
Desmoglein 3 Ab Ser 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 doctor may recommend this test if you have symptoms like painful blisters, skin peeling, or mouth sores. It’s often used to confirm or check the progress of autoimmune blistering diseases like pemphigus or pemphigoid.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The test checks for antibodies in your serum, which are proteins your immune system makes against desmoglein 3.

What the Results Mean

Positive results (detecting antibodies) suggest an autoimmune reaction targeting desmoglein 3, supporting a diagnosis of blistering skin conditions. Negative results mean no detectable antibodies, but further testing may still be needed.

Common Conditions This Test Helps With

This test is primarily used to diagnose or monitor pemphigus (a severe autoimmune disorder causing blisters) and related blistering diseases. It helps doctors tailor treatment and track disease activity.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Desmoglein 3 Antibody Test

Frequently asked questions

What does a positive result mean?
A positive result indicates your immune system is producing antibodies against desmoglein 3, strongly suggesting an autoimmune blistering skin condition like pemphigus. This helps doctors confirm the diagnosis and plan treatment.
How often will I need this test?
Your doctor will determine how often you need retests based on your symptoms, treatment response, and disease activity. Some patients may need monitoring every few months or as needed for flare-ups.
Can lifestyle changes affect this test?
While lifestyle factors like stress or infections may worsen symptoms, they typically don’t directly influence antibody levels detected in this test. Focus on managing symptoms and working with your doctor for long-term care.
  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