Sebaceous hyperplasia occurs when the sebaceous glands become enlarged with trapped sebum. This creates shiny bumps on the skin, especially the face. The bumps are harmless, but some people like to treat them for cosmetic reasons.
Why do they appear?
Sebaceous hyperplasia causes yellowish or flesh-coloured bumps on the skin. Sebaceous hyperplasia is most common in middle-aged or older people. People with fair skin especially people who’ve had a lot of sun exposure are more likely to get it. There’s also likely a genetic component. Sebaceous hyperplasia often happens to people with a family history of them.
Areas they are commonly found
These bumps are shiny and usually on the face, especially the forehead and nose. They’re also small, usually between 2 and 4 millimetres wide, and painless.