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Illustration of a red eye

People often call conjunctivitis “pink eye” because it can cause the white of the eye to take on a pink or red color. Symptoms of pink eye can vary but typically include redness or swelling of the white of the eye.

Causes

What causes conjunctivitis?

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Symptoms

What are the symptoms of conjunctivitis?

Baby showing symptoms; crusting of her eyelids
Treatment

How are the different types of conjunctivitis are treated?

Older woman examining her eyes
Transmission

How are some types of conjunctivitis spread from person to person?

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Diagnosis

Learn how healthcare professionals diagnose conjunctivitis

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For Clinicians

Information for healthcare professionals on the causes of viral, bacterial, and

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Prevention

Learn how you can prevent conjunctivitis

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References

Scientific articles related to conjunctivitis

Illustration of a doctor examining girl's eye. Pink eye, when to see a doctor.
Help Protect Yourself

This infographic, available in English and Spanish, highlights how to protect yourself from conjunctivitis and when to see a doctor.

Girl rubbing her eye
Pink Eye: What to Do

Discusses causes and treatment, when to call a doctor, and practical tips to prevent pink eye from spreading.

La conjunctivitis: Lo que debe saber
Page last reviewed: November 12, 2021
Content source: National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases