Arachnoid cysts are the most common type of brain cyst. They're not tumors, but cysts filled with cerebrospinal fluid (a clear liquid that surrounds your brain and spinal cord). Most people who have ...

What Is a Dentigerous Cyst? A dentigerous cyst, also called a follicular cyst, is the second most common type of jaw (odontogenic) cyst. It's a fluid-filled sac that develops in your jawbone over a ...

Around one in 10 women will develop ovarian cysts at some point during their lives, and while the prospect of a cyst growing on your ovaries could set off alarm bells, they aren’t something you need ...

So you’ve been treated for an ovarian cyst in the past, but do you know which kind? Your women’s health specialist wants to know. The difference could have a significant impact on your health and ...

The overall risk of malignancy in pancreatic cysts may be as low as 0.5 to 1.5%, and the annual risk of progression is 0.5%. 7,15 Conversely, studies estimate that 15% of all pancreatic ...

There may be a genetic link for some people who experience ovarian cysts. They can also be related to conditions like endometriosis and PCOS, which may have a genetic component. Ovarian cysts are ...

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 ...

If an ovarian cyst is left untreated, it will usually resolve on its own. However, a solid or partially solid cyst may need to be evaluated by a lab to make sure it isn’t cancerous. While most ovarian ...

Colino is a contributor for TIME. Colino is a contributor for TIME. Ovarian cysts, which are small fluid-filled sacs that develop in or on the ovaries, are very common and are usually harmless. In ...