An eyelid bump is often ... Risk factors for styes include: You may have a chalazion if you have a hard lump under your skin. Chalazia develop when thick oil blocks the oil gland.

Medically reviewed by Johnstone M. Kim, MD Swollen eyelids, top or bottom, can have many causes, including allergies, infections, and blocked oil glands. While most aren't serious, eyelids can also ...

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 ...

Styes can crop up on upper or lower eyelids, and while most are on the outer edge, there are styes - called internal hordeolums - that develop on the inner surface of the eyelid, as well.

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Your son's eyelids contain many oil producing glands called Meibomian glands. These can occasionally become plugged and swollen, just like a pimple or spot can develop on the skin. Usually a stye ...