Pink eye is an inflammation of the transparent membrane that lines the eye and eyelid. It's most often caused by a virus, but bacterial infections and allergies can sometimes be the culprit. According to the Centers for Disease Control and Prevention, public schoolchildren in the U.S. miss 3 million school days each year because of pink eye. Dr. Tina Ardon, a Mayo Clinic family physician, explains what you should know about this contagious condition. Learn more: https://mayocl.in/49scYxm | Mayo

Pink eye, or conjunctivitis, occurs when the clear membrane that covers the whites of your eyes becomes infected or inflamed. Whether it’s viral, bacterial or allergic, pink eye can cause a range of symptoms that include pain and discomfort, discharge and vision problems. We explore the causes of pink eye, why some are highly contagious and what you can do if you’re dealing with it. | Cleveland Clinic