Recent Blog Articles
Can mindfulness change your brain?
Five lifestyle factors that can help prevent gastroesophageal reflux disease
Transient ischemic attacks: Varied symptoms, all important
5 inflammation-fighting food swaps
Is IBD an underrecognized health problem in minority groups?
Sickle cell disease in newborns and children: What families should know and do
COVID-19 vaccines for children and teens: What we do — and don’t — know
Happy trails: Take a hike, now
Sleep well — and reduce your risk of dementia and death
COVID-19 vaccines and the LGBTQ+ community
Pink or Red Eyes in Children and Teens
The usual cause of one or both eyes turning pink or red is conjunctivitis. Conjunctivitis, also known as "pink eye," is inflammation (redness and swelling) of the conjunctiva, the tissue covering the "whites" of the eyes and the inside of the eyelids.
The most common cause is an infection from germs (bacteria or viruses) that are passed from person to person. However, conjunctivitis also can be caused by an allergic reaction to something (for example, tree pollen), by contact with something irritating (for example, smoke in the air or chlorine in a pool), or rarely, by problems of the eye.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.