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 ...

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 ...

Cysts can form in all parts of the body, including the brain. Typically, most brain cysts are benign and do not require surgical removal. If surgery is necessary, the surgeon will either drain or ...

You should not try to remove a cyst on your own. Most cysts on the skin are harmless and resolve without treatment. But some cysts may require a medical diagnosis and treatment. Cysts are sacs that ...

Ovarian cysts are sacs or pockets of fluid that form on the ovaries. There are two types of cysts: simple and complex. These are fluid-filled cysts that have no solid features. They are often either a ...

Medically reviewed by Laura Young, MD Key Takeaways Ovarian cysts are usually harmless and may not need treatment. You should see a doctor if you have severe pelvic pain, nausea, or fever. Functional ...