Introduction
A chalazion is a usually painless lump on the eyelid that forms when a meibomian (oil) gland becomes blocked. Thickened oil builds up inside the eyelid and triggers a localized inflammatory nodule.
It can appear on the upper or lower lid and is often mistaken for a stye. Styes (hordeola) tend to be more painful and are usually infectious; chalazia are mainly sterile inflammatory plugs from gland blockage.
Most chalazia shrink over weeks with warm compresses and lid hygiene. Persistent, large, or vision-blocking lumps may need steroid injection or minor surgical drainage by an eye clinician.
This page explains common causes, care, and warning signs for general education—it is not a personalized ophthalmology plan.
Overview
Meibomian glands line the eyelids and add oil to the tear film. When a duct clogs from thickened secretions or eyelid inflammation (blepharitis), oil accumulates and a firm bump develops.
Chalazia are common in adolescents and adults and can recur if blepharitis, rosacea, seborrheic dermatitis, or poor lid hygiene continues. Large lesions may temporarily blur vision by pressing on the cornea.
Care starts conservatively. Biopsy is uncommon but considered for atypical, recurrent, or nonhealing lesions to rule out other eyelid growths.
- Blocked eyelid oil gland forming a firm lump
- Usually painless; differs from a painful infectious stye
- Linked to blepharitis, meibomian gland dysfunction, rosacea, or oily skin
- Often improves with warm compresses and lid cleaning
- May need injection or incision and curettage if persistent
- Recurrence risk falls when underlying lid disease is treated
What happens in the body
Oil in a meibomian gland thickens or the duct narrows, so secretions cannot reach the tear film. Retained material inflames surrounding eyelid tissue and forms a granulomatous nodule that you feel as a bump.
Secondary infection is uncommon but possible. Repeated blockage from chronic lid inflammation explains why some people get multiple or recurrent chalazia.
- Meibomian duct obstruction traps oily secretions
- Local inflammation creates a visible eyelid nodule
- Not primarily a contagious bacterial infection
- Chronic blepharitis and skin conditions raise recurrence risk
Signs and symptoms
Symptoms usually develop gradually. Not everyone has every sign:
- A small, firm, usually painless lump on the upper or lower eyelid
- Mild eyelid swelling, heaviness, or local tenderness
- Redness around the bump, especially early on
- A feeling of pressure or something in the eye
- Temporary blurred vision if the lump is large enough to press on the cornea
- Watery eyes or mild irritation
- Occasional drainage of thick oily material if the lesion opens
- Light sensitivity or tearing in some cases
- Multiple lumps or recurrent bumps with ongoing blepharitis
- Pain, marked redness, or pus suggesting a stye or secondary infection
Causes and risk factors
Anything that blocks or inflames eyelid oil glands can contribute:
- Meibomian gland blockage from thickened oil
- Blepharitis or meibomian gland dysfunction
- Rosacea, seborrheic dermatitis, or acne-prone skin
- Frequent eye rubbing or poor eyelid hygiene
- Dust, smoke, or other environmental irritants
- Prior eyelid infections that leave residual inflammation
- Contact lens wear or eye makeup that irritates lid margins in some people
- Less often, systemic conditions that affect skin and glands
- Not caused by “catching” a chalazion from someone else in ordinary contact
Diagnosis and evaluation
Most chalazia are diagnosed by clinical exam. Extra tests are reserved for atypical cases:
- History of duration, prior styes or chalazia, and lid care habits
- Examination of lump size, location, firmness, and lid margin health
- Check for blepharitis, rosacea, or associated conjunctival irritation
- Differentiate from stye, sebaceous cyst, and other eyelid masses
- Imaging rarely needed unless another orbital or lid disease is suspected
- Biopsy if a lesion fails treatment, recurs in the same spot unusually, or looks atypical for cancer exclusion
- Blood tests only if a systemic driver is suspected
- Urgent review if vision drops suddenly or the whole eyelid becomes hot and swollen
Treatment and management
Start with conservative care; escalate if the lump persists or impairs vision:
- Warm compresses for 10–15 minutes several times daily to soften oil and encourage drainage
- Gentle lid hygiene with recommended lid scrubs or diluted cleanser as advised
- Avoid squeezing or puncturing the lump at home
- Topical antibiotics only if a clinician finds associated blepharitis or secondary infection—not routinely for a sterile chalazion
- Oral antibiotics in selected recurrent or rosacea-related lid disease under medical advice
- Intralesional corticosteroid injection to shrink persistent nodules
- Incision and curettage under local anesthesia when conservative care fails
- Transconjunctival approaches to limit external scarring when surgery is needed
- Pause eye makeup and consider glasses instead of contacts during flares
- Treat underlying blepharitis or skin disease to lower recurrence
Prevention, self-care, and lifestyle
Not every condition is fully preventable, but the steps below may lower risk or recurrence:
- Clean eyelids regularly if you are prone to blepharitis or recurrent chalazia
- Limit rubbing; wash hands before touching the eyes
- Replace old eye makeup and avoid sharing eye cosmetics
- Manage rosacea or seborrheic dermatitis with dermatology guidance
- Reduce smoke and dust exposure when possible
- Use warm compresses early when lids feel clogged or crusted
Possible complications
Delay, missed care, or unsafe self-medication can raise the chance of complications in some cases:
- Temporary vision blur from corneal pressure or astigmatism
- Secondary eyelid infection or cellulitis (uncommon)
- Chronic inflammation or lid scarring with repeated lesions
- Cosmetic concern and discomfort affecting daily confidence
- Rare need to exclude other eyelid tumors if a “chalazion” never behaves typically
When to see a doctor or seek emergency care
Seek prompt medical advice or emergency care if any of the following apply—it is safer not to wait and see:
- A lump that does not improve after several weeks of warm compresses
- Increasing pain, marked redness, or pus-like discharge
- Any sudden vision change or growth that expands quickly
- Swelling of the entire eyelid or surrounding tissues
- Fever or feeling systemically unwell with an eyelid infection
- Recurrent chalazia in the same location
- Chalazion in a child with severe discomfort or visual axis blockage
Living with the condition
Consistency with compresses and lid hygiene matters more than aggressive squeezing. Most people improve without surgery.
If you need drainage, recovery is usually quick; follow aftercare to keep the lid clean and avoid rubbing.
Ask your clinician about long-term blepharitis routines if lumps keep returning—prevention is often eyelid care, not repeated procedures alone.
Frequently asked questions
What is a chalazion?
It is a usually painless eyelid lump from a blocked meibomian oil gland, not a typical contagious infection.
Is a chalazion the same as a stye?
No. A stye is usually an acute, tender infection of a gland or follicle. A chalazion is typically a firmer, quieter inflammatory plug from blockage.
Will it go away on its own?
Many shrink over weeks to a few months with warm compresses. Persistent or large lesions may need injection or minor surgery.
Do I need antibiotics?
Not routinely. Antibiotics help when there is clear infection or significant blepharitis—your clinician decides.
Can it come back?
Yes, especially with untreated blepharitis or rosacea. Ongoing lid hygiene lowers recurrence risk.
When is surgery needed?
When the lump persists despite conservative care, recurs, blocks vision, or is cosmetically bothersome after shared decision-making with an eye specialist.
Important caution
This article is general health education in English. It is not a prescription for eye drops, injections, or eyelid surgery.
Persistent, painful, or vision-affecting eyelid lumps should be assessed by a qualified eye clinician.
Seek urgent care for rapid eyelid swelling, severe pain, fever, or sudden vision loss.