What is a hordeolum (stye)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: March 11, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

A hordeolum, commonly known as a stye, is a painful, localized infection of an oil gland in the eyelid, often presenting with symptoms such as redness, irritation, burning, and tearing, as noted in patients with blepharitis 1. When considering the diagnosis of a hordeolum, it is essential to take a thorough patient history, including questions about symptoms and signs, time of day when symptoms are worse, duration of symptoms, and unilateral or bilateral presentation, as outlined in the blepharitis preferred practice pattern 1. Key characteristics of a hordeolum include:

  • A small, red, tender bump on the edge of the eyelid or sometimes under the eyelid
  • Typically caused by bacteria, most commonly Staphylococcus aureus
  • Infection of either the meibomian glands (internal hordeolum) or the glands of Zeis or Moll (external hordeolum) Treatment and management strategies for hordeolum focus on promoting drainage and relieving symptoms, and may include:
  • Warm compresses applied to the affected area for 10-15 minutes, 3-4 times daily
  • Over-the-counter pain relievers like acetaminophen or ibuprofen to manage discomfort
  • Avoiding touching or squeezing the stye, and discontinuing eye makeup and contact lens use until it heals
  • Seeking medical attention if the stye persists beyond a week, worsens, affects vision, or spreads to other areas, at which point a doctor might prescribe antibiotic eye drops or ointment such as erythromycin or bacitracin for severe cases 1.

From the Research

Definition of Hordeolum

  • A hordeolum is a common, painful inflammation of the eyelid margin that is usually caused by a bacterial infection 2, 3, 4, 5.
  • The infection affects oil glands of the eyelid and can be either internal or external 2, 3, 4, 5.
  • External hordeola are also known as styes, while internal hordeola occur when the meibomian gland in the tarsal plate is affected 4.

Characteristics of Hordeolum

  • The condition is common and can resolve spontaneously in many cases, but the inflammation can spread to other ocular glands or tissues, and recurrences are common 2, 3, 4, 5.
  • If unresolved, an acute internal hordeolum can become chronic or develop into a chalazion 2, 3, 4, 5.
  • The onset of hordeolum is usually self-limited and may resolve in about a week with spontaneous drainage of the abscess 4.

Types of Hordeolum

  • Internal hordeolum: occurs when the meibomian gland in the tarsal plate is affected 4.
  • External hordeolum (stye): occurs when the glands of Zeis or Moll associated with eyelash follicles are affected 4.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Interventions for acute internal hordeolum.

The Cochrane database of systematic reviews, 2013

Research

Interventions for acute internal hordeolum.

The Cochrane database of systematic reviews, 2010

Research

Acupuncture for acute hordeolum.

The Cochrane database of systematic reviews, 2017

Research

Non-surgical interventions for acute internal hordeolum.

The Cochrane database of systematic reviews, 2017

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.