Eyelid Bump
Alternate Names : Bump on the Eyelid, Sty
Definition
Most bumps on the eyelid are styes. A sty 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 touch.
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Overview, Causes, & Risk Factors
A sty is caused by bacteria from the skin that get into the hair follicle of the eyelash. Hair follicles contain oil glands that become inflamed from the bacteria. Styes are similar to common acne pimples that occur elsewhere on the skin. You may have more than one sty at the same time.
Styes usually develop over a few days and may drain and heal on their own. A sty 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 blepheritis (see eye redness), you are more likely to get styes.
Other possible eyelid bumps include:
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Xanthelasma -- raised yellow patches on your eyelids that can happen with age. These are harmless, although they are occasionally a sign of high cholesterol.
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Papillomas -- pink or skin colored bumps. They are harmless, but can slowly grow, affect your vision, or bother you for cosmetic reasons. If so, they can be surgically removed.
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Cysts -- small fluid-filled sacs that can affect your vision.
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