Eye Discharge

Ocular Discharge / Conjunctival Secretions

Mild severity35% reported by patientsICD-10: H57.89

Summary

Mucus, pus, or crusting from the eye caused by conjunctivitis (viral, bacterial, or allergic), blepharitis, dry eye, or — rarely — more serious eye conditions.

What is it?

Eye discharge results from increased secretion or altered composition of the tear film and conjunctival mucus. Viral conjunctivitis (most commonly adenovirus) produces watery discharge, unilateral onset spreading to the other eye, and is highly contagious. Bacterial conjunctivitis produces thick yellow-green mucopurulent discharge causing the lids to stick together in the morning. Allergic conjunctivitis produces bilateral watery discharge with intense itching. Blepharitis (eyelid margin inflammation) causes morning crusting with waxy white or yellow scales at the lash bases. Neonatal conjunctivitis (ophthalmia neonatorum) from gonorrhea or chlamydia within the first month of life is an emergency requiring systemic antibiotics.

Common causes

Conjunctivitis

  • Viral conjunctivitis (adenovirus)
  • Bacterial conjunctivitis (S. aureus, H. influenzae, gonorrhea)
  • Allergic conjunctivitis
  • Chlamydial conjunctivitis

Eyelid / Lacrimal

  • Blepharitis
  • Chalazion / hordeolum (stye)
  • Nasolacrimal duct obstruction
  • Dacryocystitis

Other

  • Dry eye syndrome (mucous strands)
  • Foreign body
  • Contact lens overuse
  • Chemical conjunctivitis

When to see a doctor

  • 1Copious purulent discharge in a sexually active adult — possible gonococcal conjunctivitis, urgent
  • 2Eye discharge with severe pain, photophobia, or vision changes — rule out corneal ulcer or keratitis
  • 3Newborn with eye discharge in the first month of life — neonatal conjunctivitis is an emergency
  • 4Conjunctivitis in a contact lens wearer — higher risk of Pseudomonas keratitis
  • 5Eye discharge with preauricular lymphadenopathy — viral conjunctivitis or EBV

What you can do

  • Wash hands frequently — viral conjunctivitis is highly contagious via contact
  • Use a warm compress to loosen crusted discharge and unclog meibomian glands in blepharitis
  • Do not share towels, pillowcases, or eye makeup with others
  • Remove contact lenses until symptoms fully resolve
  • Clean the eyelid margins with diluted baby shampoo on a cotton swab for blepharitis

Frequently asked questions

This page is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified health provider with questions about your symptoms or medical conditions.

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