Distinguish between a sebaceous cyst and epidermoid cyst. An epidermoid cyst is more common than a sebaceous cyst. Each will have slightly different symptoms and will be treated just a little differently. Therefore, it is important that the cyst you have on your skin is diagnosed appropriately for effective treatment.
Both types of cysts are flesh-colored or white-yellow and have a smooth surface.
Epidermoid cysts are more common. These are slow growing and often painless. They don’t usually require treatment, unless they are causing pain or become infected.
Pilar cysts are composed primarily of keratin (the protein that makes up hair and nails) and form from the outer hair root sheath, typically on the head. A pilar cyst is often thought to be another term for a sebaceous cysts, but they are in fact different.
Sebaceous cysts are commonly found in the hair follicles on the head. They form inside the glands that secrete sebum, an oily substance that coats the hair. When these normal secretions are trapped, they develop into a pouch containing a cheese-like substance. They are commonly found in areas near the neck, upper back, and on the scalp. Sebaceous cysts are often confused with pilar or epidermoid cysts.