Back to Health A to Z. A skin cyst is a fluid-filled lump just underneath the skin. It's common and harmless, and may disappear without treatment. It can be difficult to tell whether a lump is a cyst or something else that might need treatment.
Skip to content. What is a dermoid cyst? A dermoid cyst is a sac or growth in or on the body that that contains fluid or semisolid material. A dermoid cyst is considered a congenital defect or abnormality, meaning the problem occurred during fetal development.
You have a little white bump on your face. What is it? Let's take a look at common, and not-so-common, causes of white bumps on the skin, how you can identify them, and how to get rid of them. Milia are white, raised, hard bumps on the skin.
NCBI Bookshelf. Patrick M. Zito ; Richard Scharf. Authors Patrick M.