Question: what causes white cysts on eyelids?
Answer: Meibomian cysts or milia? A Meibomian cyst is a hard, round lump that develops within the upper or lower eyelid from a blocked Meibomian gland. Milia are tiny white bumps that form on the skin's surface, often around the eyes, when dead skin cells become trapped in a sweat gland or hair follicle.