What Causes Bumps on Your Skin? There are a number of conditions that cause lumps and bumps to appear on the surface or just below the skin. Some of the most common ones are: Cysts are noncancerous, ...

What Is an Epidermoid Cyst (Sebaceous Cyst)? If you have a bump on your skin that’s not painful, it may be a skin cyst. There are two kinds of skin cysts: epidermoid and sebaceous cysts. Sometimes ...

Medicare covers sebaceous cyst removal when medically necessary. This includes cases where the cyst causes bleeding or pain, shows signs of inflammation or infection, or has recently gotten larger.

A pilonidal cyst is a sac filled with hair and skin debris that forms at the bottom of your tailbone. The recovery time after surgery depends on the procedure type and if you need stitches. In some ...