A dermoid cyst is a type of benign tumor that often contains hair, skin, and sometimes teeth. These cysts are usually present at birth and can develop in various parts of the body, including the ovaries, face, and spine. They form from cells that are meant to develop into skin and hair, but instead, they become trapped under the skin. Most dermoid cysts are painless and may not require treatment unless they cause discomfort or complications. If necessary, a healthcare provider can remove them through a minor surgical procedure. Regular monitoring is often recommended to ensure they do not grow or cause issues.