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Living with Acute febrile mucocutaneous lymph node syndrome

A sudden, short-term illness of infants and young children with long fever, rash, and red eyes, lips, and tongue.

Understanding Acute febrile mucocutaneous lymph node syndrome

Acute febrile mucocutaneous lymph node syndrome, also called Kawasaki disease, is a sudden, short-term illness that affects infants and young children.

Children develop a fever lasting several days, a rash, and swollen lymph nodes in the neck. Without treatment, 15 to 25 percent develop bulging and thinning of the walls of the arteries that supply the heart muscle (coronary artery aneurysms) or other damage to those arteries.

Signs & symptoms

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

  • Fever lasting several days
  • Skin rash
  • Swollen lymph nodes in the neck
  • Red eyes (conjunctivitis)
  • Red lips, mouth, and tongue
  • Red palms of the hands and soles of the feet

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.

  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, Global Autoimmune Institute and Vasculitis Foundation may keep lists of experts for this condition.

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists)
Expert care
Expert lists: Autoimmune Association, Global Autoimmune Institute, Vasculitis Foundation
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 and other patient organizations
  • 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
What heart tests does my child need, and how often?
How is Kawasaki disease treated, and when should treatment start?
Which specialists should follow my child's care?

Quick facts

Symptoms usually starta variety of ages

GARD doesn't describe a cause for this condition yet.

Also known as: acute febrile mcls; acute febrile mucocutaneous lymph node syndrome [mcls]; infantile polyarteritis; infantile polyarteritis nodosa; kawasaki disease; kawasaki syndrome

Patient organizations

Source: NIH GARD · Acute febrile mucocutaneous lymph node syndromeGARD ID 6816 · 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 Acute febrile mucocutaneous lymph node syndrome.

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