Internal hordeolum, meibomian cyst, tarsal cyst, stye, eyelid lump, modified sweat gland in the eyelid, eyelid swelling, eyelid bum

A chalazion is a lump in the eyelid that is caused by inflammation of a gland within the skin. Typically, this lump grows over days to weeks and is occasionally red, warm, or painful.

The gland involved in the formation of a chalazion is a modified sweat gland that lies within the eyelid. This gland produces oil. When this gland becomes blocked, it can rupture and the inflammation process begins.

Inflammation is a process in which the body reacts to a condition and produces a biologic reaction. This reaction can cause swelling, redness, pain, or warmth. A chalazion is not a stye.

A stye can resemble a chalazion in the sense that it is also a lump in the eyelid. However, a stye involves glands and eyelash hair follicles that are closer to the skin surface of the eyelid. In addition, a stye is usually more painful and looks infected.


Chalazion Causes

A chalazion is caused by the oil in the gland becoming too thick to flow out of the gland. This oil that is too thick blocks up the gland, but the gland still produces more oil.

Without anywhere to go, the oil builds up inside the gland and forms a lump in the eyelid. Eventually, the gland ruptures (breaks open) and releases the oil into the tissue of the eyelid, causing inflammation.

Chalazion Symptoms


Swelling of the upper eyelid may occur gradually over weeks. The condition rarely involves the lower eyelid.
A chalazion appears as a localized hard lump that may grow as large as an eighth of an inch.
Occasionally, you may feel pain and your eyelid may be red.

Chalazion Treatment

Self-Care at Home
  • Warm compresses may be helpful. Hold a warm, wet towel on the eyelid for 10-15 minutes, 2-4 times a day, to reduce swelling.
  • Lightly massage the area several times a day.
  • Do not "pop" or scratch the chalazion.
Medical Treatment
  • Treatment of the chalazion may include the following:
  • Application of warm compresses for about 15 minutes, 2-4 times a day, to reduce swelling
  • A prescription for antibiotic eyedrops or ointments if a bacterial infection is suspected to be the cause
  • Injection of a steroid medicine to help decrease the inflammation
  • Surgical removal of the lump if it creates symptoms or lasts for weeks


Typically, a chalazion goes away within a couple of weeks. If so, no long-term consequences occur.
If the chalazion lasts for weeks or comes back, then your ophthalmologist evaluates whether the lump should be removed surgically. The lump is rarely associated with an infection or a form of skin cancer.







Back to common eye conditions menu

Did you know?

  • "If you could buy a camera with the same resolution as your eye it would take over 50 days to load an image on your computer!"

Take a look at our latest products

William Morris Charles Stone - 502
William Morris Charles Stone - 402 - C2
William Morris Charles Stone - 402 - C1
William Morris Charles Stone - 325
William Morris Charles Stone - 317
01325 355482
0191 3849770
01287 639257
01207 521840
01661 835353
0191 4133394
01642 790990