There is usually no obvious reason for the ducts to become blocked, but some people do seem more prone to forming sebaceous cysts than others. It is also a condition that can run in families.

While these types of cysts are usually harmless, a sebaceous cyst may cause complications if it becomes inflamed or infected.

or causes pain. Medicare also covers the removal of other benign skin lesions if they meet the same criteria. Find out when Medicare considers the removal of sebaceous cysts and other benign skin ...

If that doesn’t work, the doctor may give you a cortisone shot to help ease inflammation and pain ... but rather a keratin substance. A sebaceous cyst causes a discolored bump on your skin.

The following chart summarizes the different types of ingrown hair cysts that can form, what causes them ... treatment is to reduce the surrounding inflammation and decrease your risk of infection.