Most bumps on the eyelid are styes. A stye is an inflamed oil gland on the edge of your eyelid, where the lash meets the lid. It appears as a red, swollen bump that looks like a pimple. It is tender, especially to the touch.
Bump on the eyelid; Stye; Hordeolum
A stye is caused by bacteria from the skin that get into the oil glands in the eyelids that provide lubrication to the tear film. Styes are similar to common acne pimples that occur elsewhere on the skin. You may have more than one stye at the same time.
Styes usually develop over a few days and may drain and heal on their own. A stye can become a chalazion -- this is when an inflamed oil gland becomes fully blocked. If a chalazion gets large enough, it can cause trouble with your vision.
If you have blepharitis (see eye redness), you are more likely to get styes.
Other possible eyelid bumps include:
In addition to the red, swollen bump, other possible symptoms include:
A doctor can diagnose a stye just by looking at it. Special tests are usually not necessary.
Styes often get better on their own. However, they may recur. The outcome is generally excellent with simple treatment.
Call your doctor if:
Always wash your hands thoroughly before touching the skin around your eye. If you are susceptible to styes, it may help to carefully clean off excess oils from the edges of your lids.
Wright JL, Wightman JM. Red and painful eye. In: Marx JA, ed. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 32.
Neff AG, Carter KD. Benign eyelid lesions. In: Yanoff M, Duker JS, eds. Ophthalmology. 3rd ed. St. Louis, Mo: Mosby Elsevier; 2008:chap 12.9.
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