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What is the difference between a chalazion and a stye?

A chalazion is sometimes confused with a stye, which also appears as a lump on the eyelid. A stye is a red, sore lump near the edge of the eyelid caused by an infected eyelash follicle. Chalazia tend to develop farther from the edge of the eyelid than styes. In some situations it may be difficult to distinguish between a chalazion and stye.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.