Other causes include milia (milium), chalazion, or, in rare cases, skin cancer. A milium is a white bump caused by dead skin cells trapped under your skin. You can typically prevent eyelid bumps ...

A pimple on your eyelid usually isn't acne — it's probably a stye, chalazion, or xanthelasma. A stye is a round, red bump that can be treated with a warm compress to drain the pus. A chalazion ...