What is the difference between Milia and Whiteheads? Milia and whiteheads are both small, white bumps that can appear on the skin. However, the cause of them and their appearance is different, equally so is how they should be treated.  Being able to understand these differences can help in addressing them more effectively and deciding whether a trip to see a Blemish Removal Practitioner is the right thing for you. Milia Milia are small, hard, white cysts that form when keratin (a type of protein found in skin, hair, and nails) becomes trapped beneath the surface of the skin. Milia often appear around the eyes, cheeks, nose, or forehead. Even