First Time User? Enroll now.
COVID-19: Vaccine information, visitor restrictions, testing, treatment, and additional resources
Home > Health Library > Kawasaki Disease
Kawasaki disease is a rare childhood illness that affects the blood vessels. The symptoms can be severe for several days. But with treatment, most children return to normal activities.
Kawasaki disease can harm the coronary arteries, which carry blood to the heart muscle. Most children who are treated recover from the disease without long-term problems. Your doctor will watch your child for heart problems for a few weeks to a few months after treatment.
The disease is most common in children younger than age 5. It does not spread from child to child (is not contagious).
Experts don't know what causes the disease. The disease happens most often in the winter and early spring.
Symptoms of Kawasaki disease include:
Get medical help right away if your child has symptoms of Kawasaki disease. Early diagnosis and treatment can often prevent future heart problems.
Kawasaki disease can be hard to diagnose, because there is not a test for it. Your doctor may diagnose Kawasaki disease if both of these things are true:
Your child may also have routine lab tests. And the doctor may order an echocardiogram to check for heart problems.
After your child gets better, he or she will need checkups to watch for heart problems.
Treatment for Kawasaki disease starts in the hospital. It may include:
Because of the risk of Reye syndrome, do not give aspirin to your child without talking to your doctor. If your child is exposed to or develops chickenpox or flu (influenza) while taking aspirin, talk with your doctor right away.
Your child may be tired and fussy, and your child's skin may be dry for a month or so. Try not to let your child get overly tired. And use skin lotion to help keep the fingers and toes moist.
If the disease causes heart problems, your child may need more treatment and follow-up tests.
It may be a few weeks before your child feels completely well. But most children who have Kawasaki disease get better and have no long-term problems. Early treatment is important, because it shortens the illness and lowers the chances of heart problems. Follow-up tests can help you and your doctor be sure that the disease did not cause heart problems.
Some children will have damage to the coronary arteries. An artery may get too large and form an aneurysm. Or the arteries may narrow or be at risk for blood clots. A child who has damaged coronary arteries may be more likely to have a heart attack as a young adult. If your child is affected, know what to watch for and when to seek care.
Current as of:
December 20, 2021
Author: Healthwise StaffMedical Review: Kathleen Romito MD - Family MedicineE. Gregory Thompson MD - Internal MedicineJohn Pope MD - Pediatrics
Current as of: December 20, 2021
Author: Healthwise Staff
Medical Review:Kathleen Romito MD - Family Medicine & E. Gregory Thompson MD - Internal Medicine & John Pope MD - Pediatrics
To learn more about Healthwise, visit Healthwise.org.
© 1995-2022 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.