You pick up your baby after a nap and notice yellow crust on the eyelashes. Perhaps one eye keeps watering, or the white has turned pink. A baby sticky eye can be unsettling, especially when your little one cannot explain whether it hurts. Its appearance gives clues, but does not always reveal the cause.
Conjunctivitis in babies is inflammation of the membrane covering the white of the eye and lining the eyelids. Infection or irritation can trigger it. Sometimes, however, sticky lashes come from a blocked tear duct rather than conjunctivitis. Knowing what to observe helps you describe the problem and recognise when your baby needs medical care.
What does conjunctivitis look like?
Common conjunctivitis symptoms include pink or red whites of the eyes, watering, mucus or pus, crusted eyelashes and puffy eyelids. One eye may be affected first, though both can become involved. Babies may rub their faces or seem unsettled when their eyes are uncomfortable.
Notice what happens after gently clearing discharge. Does it quickly return? Is the white of the eye red, or is there only dried mucus near the corner? Has your baby developed a cold? These details are more useful than assuming every sticky eye means infection.
Sticky eye or blocked tear duct?
A blocked tear duct is common in infancy. Tears normally drain through a channel near the nose. If it has not fully opened, tears and mucus collect, causing watering and sticky lashes. Unlike conjunctivitis, the white of the eye may look clear and the eyelid may not be swollen.
For example, a six-week-old baby might wake with one eye slightly stuck together but have a clear white eye after cleaning. That pattern can fit a blocked duct. New redness across the white of the eye with increasing discharge is more suggestive of inflammation.
A blocked duct can also become infected, so these clues are not a diagnosis. Ask a healthcare professional about persistent discharge or symptoms that have never been assessed. A guide to blocked tear ducts in babies can provide additional background.
Why babies develop red or sticky eyes
Viral conjunctivitis
Viruses can cause watering, redness and irritation, sometimes alongside a cold. Symptoms may begin in one eye and move to the other. Antibiotics do not treat viruses; the appropriate care depends on the baby’s age and condition.
Bacterial conjunctivitis
Bacteria may cause thicker yellow or green discharge that returns after wiping and sticks the eyelashes together. Colour alone cannot confirm the cause. A clinician may prescribe antibiotics when appropriate, especially if pus or a more serious infection is suspected.
Irritation and other causes
Smoke, dust and other irritants may cause redness and watering. Allergic conjunctivitis is less typical in very young babies and often involves itching in both eyes. A baby red eye can occasionally indicate something more serious than conjunctivitis.
Infections in newborns
During the first month, eye symptoms need extra caution. Infections acquired around birth can damage the eye and may need urgent tests and medicines taken by mouth or given by injection. A newborn with red, sticky or swollen eyes needs prompt medical assessment, even if feeding normally.
When should you get medical help?
Seek urgent medical assessment for a baby younger than 30 days with red, sticky eyes. Do not wait to see whether the problem clears. For an older baby, contact a doctor promptly about a newly red eye, recurring pus or worsening symptoms.
Get urgent care if an eyelid becomes very red or swollen, the eye seems painful, your baby avoids light or cannot comfortably open it, or the clear front surface appears cloudy. Unusual sleepiness, difficulty waking, poor feeding or a generally ill appearance are also warning signs.
A temperature of 38°C (100.4°F) or higher in a baby under three months requires urgent medical evaluation, whether or not the eye looks infected. Seek emergency care if your baby appears seriously ill. A guide to fever in young babies can help you recognise related warning signs.
When calling a clinician, explain your baby’s age, when symptoms began, whether one or both eyes are involved, any fever and whether discharge returns after cleaning. A quick photograph in good light may help show how the eye looked earlier, but should never delay care.
How to clean your baby’s eye safely
While arranging medical advice, gently removing discharge may improve comfort. Wash your hands first. Dampen clean cotton wool or a disposable pad with clean lukewarm water and wipe from the corner nearest the nose outward. Use a fresh pad for each wipe and a separate one for the other eye.
Do not force apart stuck eyelids; soften crusts first with a damp pad. Avoid breast milk, herbal mixtures, leftover antibiotics or someone else’s eye drops. Ask a healthcare professional before using medicated drops, particularly for a newborn.
If a clinician confirms a blocked tear duct, they can advise whether gentle massage is useful and show you how. Do not press on a painful or swollen area without guidance. Cleaning may remove discharge, but it cannot replace treatment when an infection requires it.
What treatment might a doctor recommend?
The doctor usually examines the eye and eyelids, checks your baby’s general health and considers infection, a blocked duct or another problem. Sometimes a discharge sample is needed, especially with newborn or severe infections.
Some mild conjunctivitis resolves without antibiotics, while certain bacterial infections need prescribed drops or ointment. Some newborn infections require medication that treats the whole body. Follow the prescribed directions and arrange reassessment if symptoms worsen or fail to improve.
Preventing spread at home
Viral and bacterial conjunctivitis can spread through hands and shared items. Wash your hands before and after cleaning the eye, discard used pads and keep towels and face cloths separate. Try to prevent siblings from touching the baby’s eyes. If a cold is circulating, advice on caring for a baby with a cold may also be helpful.
Frequently asked questions
Is a sticky eye always conjunctivitis?
No. A blocked tear duct can cause watering and sticky lashes without redness. Persistent discharge still deserves medical advice, especially if swelling develops.
Can conjunctivitis affect only one eye?
Yes. It can start in one eye and sometimes spread. One-sided symptoms do not establish whether the cause is viral, bacterial or a blocked duct.
Does yellow discharge mean antibiotics are needed?
Not automatically. Thick discharge may suggest bacteria, but appearance alone cannot determine treatment. A healthcare professional should assess whether antibiotics are appropriate.
How long does conjunctivitis in babies last?
It depends on the cause. Some mild viral cases improve within one to two weeks. Newborn symptoms, worsening redness or an unwell baby should not be left untreated while waiting for improvement.
The main thing to remember
Sticky eyelashes are a symptom, not a diagnosis. Pay attention to the white of the eye, the eyelids, your baby’s age and overall wellbeing. Gentle cleaning supports comfort, but a newborn’s red or sticky eye, significant swelling, fever or other warning signs need prompt medical attention.
