A milium is a white bump caused by dead skin cells trapped under your skin. You can typically prevent eyelid bumps by always washing your hands before touching your face. Most bumps on the eyelids ...

which are cysts caused by trapped oil in the pores, milia cysts are made up of keratin, the protein found in hair. These tiny ...

Another common type of white bump is a closed comedone, often referred to as a whitehead. These form when sebum (oil), bacteria, and dead skin cells become trapped in a pore. Unlike open comedones ...