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What causes a stye or a chalazion?

ANSWER

A stye usually stems from a bacterial infection that causes a blocked eyelid oil gland or clogged eyelash follicle. Stress and hormonal changes also can bring on a stye.

A chalazion happens when a tiny part of the eyelid called a meibomian gland becomes blocked.

Blepharitis, which is a condition that causes the eyelids to become inflamed, often is linked to styes and chalazia. So is rosacea, a skin condition.

Skin cancer also can cause styes and chalazia, though this is rare.

Also, a stye left untreated can sometimes turn into a chalazion.

SOURCES:

Cheng, K. Cochrane Library, published online April 19, 2014.

Mayo Clinic: “Sty.”

American Optometric Association: “Chalazion.”

 

Reviewed by Whitney Seltman on April 23, 2020

SOURCES:

Cheng, K. Cochrane Library, published online April 19, 2014.

Mayo Clinic: “Sty.”

American Optometric Association: “Chalazion.”

 

Reviewed by Whitney Seltman on April 23, 2020

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What can you do to lower the chances of getting a stye or a chalazion?

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