Causes of Chalazion
People with meibomian gland dysfunction are more prone to developing chalazia and may experience recurring episodes.
Chalazia are often confused with styes. Both involve blocked oil-producing glands in the eyelids, but there are important differences. Styes are typically caused by bacterial infections and are often painful, whereas chalazia are generally noninfectious and less painful. Because a chalazion does not usually involve an infection, it may be easier to treat than a stye.
In rare cases, a persistent or recurring lump that resembles a chalazion may be associated with skin cancer. Consult your doctor if you are concerned or if the lump does not improve with home treatment.

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