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Living with IgG4-related dacryoadenitis and sialadenitis

An immune-related condition with swollen tear and saliva glands, causing dry eyes and dry mouth.

Understanding IgG4-related dacryoadenitis and sialadenitis

IgG4-related dacryoadenitis and sialadenitis (formerly Mikulicz disease) is an IgG4-related disease with inflammation of the tear glands and major salivary glands.

The glands involved are the lacrimal (tear) glands, parotid glands, and submandibular glands. It is usually painless, causing dry mouth and eyes and swelling over the glands. It can start at any time in life. In some cases other glands or organs are affected.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Swollen tear glands
  • Swollen parotid (cheek) glands
  • Swollen glands under the jaw
  • Dry mouth
  • Dry eyes

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include autoimmune and inflammatory disease specialists, ear, nose, and throat specialists and eye disease specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Autoimmune Association may keep lists of experts for this condition.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists); Ear, nose, and throat specialists (otolaryngologists); Eye disease specialists (ophthalmologists)
Expert care
Expert lists: Autoimmune Association
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Autoimmune Association
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which organs besides my glands might be affected?
Which specialists should be on my care team?
How will we watch for pancreas or kidney problems?

Quick facts

Symptoms usually startany time in life

The underlying cause of IgG4-related disease is still not known.

Also known as: chronic dacryoadenitis and sialadenitis; mikulicz disease; mikulicz syndrome; mikulicz' disease; mikulicz's disease; mikulicz's syndrome

Patient organizations

Source: NIH GARD · IgG4-related dacryoadenitis and sialadenitisGARD ID 7043 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with IgG4-related dacryoadenitis and sialadenitis.

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  • Recruiting studies from ClinicalTrials.gov
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  • Eligibility is confirmed by the study team

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