Chalazion

Overview

A chalazion is a small lump or swelling that develops on the eyelid when an oil gland becomes blocked. These glands help keep the surface of the eye lubricated. When the gland opening is blocked, oil can build up inside the eyelid and form a firm, painless bump.

Chalazia can occur on the upper or lower eyelid and may affect one or both eyes. They are usually not serious and are not the same as a stye, although the two conditions can look similar at first. A stye is often caused by infection and is usually painful, while a chalazion is more often a blocked gland with inflammation and tends to be less painful.

Many chalazia improve over time, but some can persist, grow larger, or cause irritation. If a lump affects vision, becomes painful, or does not improve, an eye specialist can evaluate it and recommend appropriate care.

Symptoms

The symptoms of a chalazion can vary depending on its size and location. Common signs include:

• A round bump or lump on the upper or lower eyelid
• Mild eyelid swelling
• A feeling of heaviness in the eyelid
• Redness or tenderness, especially in the early stage
• Watery eyes or mild irritation
• Blurred vision if the lump presses on the eye surface

In many cases, a chalazion is not painful. However, if the area becomes inflamed or if there is an associated infection, the eyelid may become more tender, red, or swollen.

Sometimes, chalazia can recur in the same area or appear in different eyelids over time. Recurrent eyelid lumps should be assessed by an ophthalmologist to confirm the cause and exclude other eyelid conditions.

Causes and Risk Factors

A chalazion forms when one of the eyelid’s oil glands becomes blocked. The trapped oil can irritate the surrounding tissue and lead to inflammation. This creates the characteristic eyelid lump.

Several factors may increase the likelihood of developing a chalazion, including:

• Blepharitis, which is inflammation of the eyelid margins
• Oily skin or conditions affecting the oil glands
• Previous chalazia or recurrent eyelid inflammation
• Skin conditions such as rosacea
• Poor eyelid hygiene or buildup of debris along the lashes
• Using old or contaminated eye makeup
• Not removing eye makeup thoroughly

A chalazion is generally not contagious. It is caused by blockage and inflammation rather than spread from person to person. However, good eyelid hygiene can help support eyelid health and may reduce irritation in people prone to these lumps.

Diagnosis

Diagnosis is usually made through an eye examination. The ophthalmologist or eye care professional will look at the eyelid, check the location and appearance of the lump, and ask about symptoms such as pain, discharge, vision changes, or recurrence.

The examination may include checking the inside of the eyelid, the eyelid margins, and the surface of the eye. Vision may also be tested if the lump is large enough to press on the eye or cause blurring.

Most chalazia can be recognized based on their appearance and symptoms. In unusual cases, especially if a lump keeps coming back in the same place, does not heal, looks atypical, or occurs in older adults, further evaluation may be recommended. This is done to rule out other eyelid conditions that can sometimes resemble a chalazion.

Treatment Options

Treatment depends on the size of the chalazion, symptoms, duration, and whether there are signs of infection or inflammation. Many small chalazia improve gradually with conservative care recommended by a healthcare professional.

General supportive measures may include warm compresses and gentle eyelid care. These approaches can help soften the blocked oil and support natural drainage. It is important not to squeeze, pop, or cut the lump, as this can worsen irritation or lead to infection.

If the chalazion is large, persistent, repeatedly returns, or affects vision, an ophthalmologist may discuss additional treatment options. These may include in-office procedures to drain the blocked gland or reduce inflammation. The most suitable option depends on the individual case and examination findings.

If eyelid inflammation or an underlying condition such as blepharitis is present, the doctor may recommend a longer-term eyelid care plan to help manage irritation and reduce the chance of recurrence. Patients who wear contact lenses or use eye makeup may be advised to pause or adjust use until the eyelid has improved, depending on the clinician’s guidance.

Chalazion treatment is generally straightforward, but recovery time can vary. Follow-up may be needed if the lump does not decrease, if symptoms worsen, or if new signs develop.

When to See a Doctor

It is advisable to see an eye doctor if an eyelid lump is persistent, growing, or causing discomfort. Medical evaluation is especially important if:

• The lump does not improve over time
• Vision becomes blurred or distorted
• The eyelid becomes increasingly red, painful, or swollen
• There is discharge from the eye or eyelid
• The lump keeps recurring in the same location
• There is significant swelling around the eye
• The eye itself becomes red, painful, or sensitive to light

Children, older adults, people with recurrent eyelid lumps, and individuals with underlying skin or eye conditions may benefit from earlier assessment. Prompt evaluation helps confirm the diagnosis, relieve symptoms, and identify any underlying eyelid issues that may need attention.

A chalazion is common and often manageable, but professional advice is recommended when symptoms are prolonged, unusual, or affecting daily activities such as reading, driving, or wearing contact lenses.