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What Causes Yellow Ocular Discharge?

Yellow ocular discharge, commonly called "rheum," is a thick, sticky fluid that often indicates underlying infection or inflammation. While white crust in the morning is normal, consistent yellow discharge usually signals a bacterial invader.

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What Causes Yellow Ocular Discharge?

Yellow ocular discharge, commonly called "rheum," is a thick, sticky fluid that often indicates underlying infection or inflammation. While white crust in the morning is normal, consistent yellow discharge usually signals a bacterial invader.

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Bacterial Conjunctivitis

The most common cause of yellow "pus" in the eye is bacterial conjunctivitis (pink eye). It produces a thick yellow mucus that can cause the eyelids to feel "glued shut" upon waking.

Styes and Blepharitis

A stye can often produce a localized yellow discharge that looks like a small pimple on the lid. Similarly, blepharitis can cause the oils in your lids to turn into a yellow, crusty residue.

Dacrocystitis (Duct Infection)

If the yellow discharge is coming from the inner corner of the eye near the nose, it may indicate "dacrocystitis," an infection of the tear drainage system.

Management and Hygiene

Treatment typically involves prescription antibiotic eye drops. To manage symptoms, use a warm, clean compress to gently soften and wipe away the discharge.

Frequently Asked Questions About Yellow Eye Discharge

Is yellow discharge always an infection?

Not always, but it is a strong indicator. It represents white blood cells and debris, which are usually present during a bacterial infection.

Can allergies cause yellow discharge?

Allergy discharge is usually clear and stringy. If it turns yellow, it may mean a secondary infection has developed from rubbing the eyes.

When should I see a doctor?

If the discharge is accompanied by pain, blurred vision, or extreme light sensitivity, you should see an eye doctor immediately.