It often starts as a sore spot you assume is a zit, ingrown hair, or minor irritation. Then it gets worse. Sitting becomes ...

Cysts in the lungs are called pulmonary cysts. Instead of fluid, they usually contain gas. They can affect breathing. They often develop as a person ages but may also indicate an underlying medical ...

Cysts are capsules or sac-like structures, typically containing a liquid, semisolid, or gaseous material, much like a blister. There are many types, such as acne cysts, ganglion cysts, and kidney ...