<Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> A stye, also known as a hordeolum, is an infection of an oil gland in the eyelid . This results in a red tender bump at the edge of the eyelid . The outside or the inside of the eyelid can be affected . </P> <P> The cause of a stye is usually a bacterial infection by Staphylococcus aureus . The internal ones are due to infection of the meibomian gland while the external ones are due to an infection of the gland of Zeis . A chalazion on the other hand is a blocked oil gland without infection . They are typically in the middle of the eyelid and non painful . </P> <P> Often a stye will go away without any specific treatment in a few days or weeks . Recommendations to speed improvement include warm compresses . Occasionally antibiotic eye ointment may be recommended . While these measures are often recommended evidence to support them is poor . The frequency at which they occur is unclear . They may happen at any age . </P>

Where do styes in the eye come from