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Stye (Hordeolum) vs Chalazion: Understanding the Differential Diagnosis

Two common eyelid conditions with distinct clinical presentations and management strategies.

mysimulator teamUpdated June 2026≈ 3 min read▶ Open the simulation

What is a Stye (Hordeolum)?

A stye, also known as an acute hordeolum, is an infection of the oil glands at the base of eyelashes. It typically presents as a painful, red bump on the eyelid and can be caused by bacteria such as Staphylococcus aureus.

Styes are usually self-limiting but may require treatment with warm compresses or antibiotics if they become severe or recurrent.

What is a Chalazion?

A chalazion, on the other hand, is a chronic painless granuloma of the meibomian gland. Unlike styes, it does not involve infection and results from an obstruction in the gland’s duct.

Chalazia often appear as small, firm lumps on the eyelid that may grow over time and can be managed with warm compresses or surgical removal if they persist.

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Clinical Presentation

Styes are characterized by a painful, red bump at the base of an eyelash, often accompanied by swelling and tenderness. They usually resolve within a week without treatment.

Chalazia present as painless, firm lumps on the eyelid that may be more persistent than styes and can cause discomfort or visual disturbances if they grow large enough.

Management Strategies

Treatment for styes primarily focuses on relieving symptoms with warm compresses to encourage drainage of the blocked gland. In some cases, antibiotics may be prescribed.

Chalazia are managed similarly but often require more time to resolve. Warm compresses and gentle massage can help, but surgical removal (cicatricial excision) is sometimes necessary if conservative measures fail.

Frequently asked questions

How do you differentiate between a stye and a chalazion?

Styes are typically painful and red, while chalazia are usually painless and appear as firm lumps. Styes involve infection of the oil glands at the base of eyelashes, whereas chalazia result from an obstruction in these glands without infection.

Can a stye turn into a chalazion?

In rare cases, a stye can evolve into a chalazion if it persists and becomes chronic. However, this is not the typical progression of the condition.

Are styes contagious?

Styes are not typically contagious; they result from local bacterial infection rather than an infectious agent that can spread to others.

How long does it take for a chalazion to resolve on its own?

Chalazia may take several weeks to months to resolve without treatment, depending on the size and individual response. Persistent or large chalazia often require medical intervention.

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