Sebaceous cysts, or epidermoid cysts, are bumps that grow just beneath the skin. Often painless, these cysts generally do not cause problems or need any treatment, as they are nearly always noncanerous.

What are the symptoms of sebaceous cysts?

Sebaceous cysts show small, round bumps that are below the surface of your skin. They can be found on nearly any part of your skin. If they are infected, you will notice a thick, yellow substance oozing from the cyst, or it may be red and tender.

What causes sebaceous cysts?

As your skin sheds layers, on occasion some cells plunge deeper into your skin and begin to multiply. They are commonly caused when a hair follicle is damaged, or simply from heredity. Genetics can play a big role in whether or not you are susceptible to sebaceous cysts.

How are sebaceous cysts treated?

If your cyst is not causing problems, it is generally left alone, as it does not damage your body. However, if it prevents you from performing certain functions, or it causes cosmetic problems, then you may have it treated. This can be done with corticosteroid injections, drainage, or even completely removing the cyst.

How can you prevent sebaceous cysts?

There are no known ways of preventing sebaceous cysts at this time.