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Horner Syndrome in Children

Medically reviewed by Last updated on May 6, 2024.

What is Horner syndrome?

Horner syndrome is a nerve condition that affects one side of your child's face. The condition is caused by an injury to a nerve that controls that side of the face. Your child may have developed Horner syndrome during birth. Horner syndrome may be a sign of a serious condition such as a stroke or aneurysm. It is important to seek immediate care if your child develops other problems, such as head or neck pain.

What are the signs and symptoms of Horner syndrome?

How is Horner syndrome diagnosed?

Your child's healthcare provider will examine your child's eyes and face. Signs and symptoms may be enough for a diagnosis. Tell the healthcare provider about your child's symptoms, including when they began and if they have worsened over time. Tell the provider about your child's health conditions, such as cancer or a history of cluster headaches. The provider will also ask if your child had any recent injuries. Your child may also need any of the following:

How is Horner syndrome managed?

Treatment of Horner syndrome depends on the cause. Signs and symptoms usually go away if the cause can be treated. Your child may need any of the following:

When should I seek immediate care?

When should I contact my healthcare provider?

Care Agreement

You have the right to help plan your child's care. Learn about your child's health condition and how it may be treated. Discuss treatment options with your child's healthcare providers to decide what care you want for your child. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.