He looks at my bump and confirms Friedman’s over-the-phone diagnosis of a benign epidermoid cyst. He explains that, during my next visit, he would apply local anesthetic and cut the cyst out.

Epidermoid cysts are caused either by cells that move deeper into the skin rather than shed, or from irritation or injury to the skin or a hair follicle.

The first thing to know is that the term “sebaceous cyst” is often used to describe what is actually an epidermoid cyst. The terms are used interchangeably, but there’s a difference, notes ...

Shoulder lumps and bumps have a variety of potential causes. Learn what those causes could be and how you should go about treatment.

Often, the best way to remove a cyst is with surgery, since this can remove the cyst wall so it doesn't come back. Your healthcare provider can determine the best treatment for you.

There are a couple kinds, but the most common one is epidermoid cysts, which are the result of cells from your skin’s surface migrating too far down into the skin’s layers.

There are six main types of brain cysts: arachnoid, pineal, colloid, dermoid, epidermoid, and neoplastic. Learn more about them here.

Cysts are fluid-filled sacs in the body. In this article, learn about the types and causes of cysts, as well as some treatment options.

Discover possible causes, such as infection or surgery. Also learn how belly button discharge is treated, prevention tips, and more.

A pilar cyst occurs on your scalp when a hair follicle is clogged. Learn more about what it is and how it can impact your health.

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.

Skin cysts are small, painless bumps under the skin that can become infected. Learn the do's and don'ts of treating this common skin problem.