A chalazion/stye can occur on the outer angle of the eyelid. A chalazion/stye can occur at the eyelid edge. This large chalazion is most likely painful and must be treated vigorously to avoid developing bacterial complications. An external stye (hordeolum) will often cause blepharitis (inflammation and redness of the inner eyelid).
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Stye (Hordeolum and Chalazion)  Teen information

Picture of Stye (Hordeolum and Chalazion): A chalazion/stye can occur on the outer angle of the eyelid. Divider line
A chalazion/stye can occur on the outer angle of the eyelid.
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Overview
Stye is a common word used for both hordeolum and chalazion, though it technically refers to hordeolum. These are two different kinds of small inflammation within the eyelid, and it is often difficult to tell the difference between them. A hordeolum is a blockage of glands on either the inner lid or the outer lid that leads to a quickly growing, painful, red swelling. A hordeolum can appear quickly, such as overnight. A chalazion is a similar blockage with inflammation, but it tends to grow slowly over weeks to months and is less tender than a hordeolum.
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Last Modified: 22 Dec 2008
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