The Barbara Bush Children's Hospital At Maine Medical Center
22 Bramhall Street Portland, Maine 04102-3175 www.bbch.org
What's a Cyst?
Cyst
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A cyst is a sac that is filled with air, liquid, or pus. Cysts can happen in different parts of the body. They can get infected and then hurt or swell. Some kids who have acne may have cysts in their skin.