My Baby Has an Eye Infection
Medically reviewed by Dr. Michael Okonkwo, MD, FAAP · Board-Certified Neonatologist
Content reviewed against published AAP, CDC, Mayo Clinic guidelines
Last reviewed:
If your baby has been diagnosed with or you suspect has an eye infection, here is what the evidence says.
The short answer
Eye infections in babies can be bacterial, viral, or caused by a blocked tear duct. Bacterial conjunctivitis causes thick yellow or green discharge and may need antibiotic eye drops. Viral conjunctivitis causes watery discharge and resolves on its own. Keep the eye clean with warm damp cotton balls, wiping from inner to outer corner. Any eye infection in a newborn under 4 weeks needs urgent medical evaluation.
Key takeaways
- Eye infections in babies can be bacterial, viral, or caused by a blocked tear duct. Bacterial conjunctivitis causes thick yellow or green discharge and may need antibiotic eye drops. Viral conjunctivitis causes watery discharge and resolves on its own. Keep the eye clean with warm damp cotton balls, wiping from inner to outer corner. Any eye infection in a newborn under 4 weeks needs urgent medical evaluation.
- Usually normal when: A minor eye discharge that is clear or slightly white, especially upon waking, which clears with gentle cleaning
- Call your doctor if: A newborn under 4 weeks has any eye redness, swelling, or discharge
- Varies by age — see the age-by-age breakdown below
“Fever itself is not an illness — rather, it is a sign or symptom that the body is fighting an infection. Fever stimulates certain defenses, such as the white blood cells, which attack and destroy invading bacteria.”
Thousands of parents search for this exact thing. You are not alone.
What Parents Should Know
According to AAP, CDC, Mayo Clinic guidelines, eye infections in babies can be bacterial, viral, or caused by a blocked tear duct. Bacterial conjunctivitis causes thick yellow or green discharge and may need antibiotic eye drops. Viral conjunctivitis causes watery discharge and resolves on its own. Keep the eye clean with warm damp cotton balls, wiping from inner to outer corner. Any eye infection in a newborn under 4 weeks needs urgent medical evaluation. At 0-3 months, eye infections in newborns (neonatal conjunctivitis) can be serious and require urgent evaluation. Infections can be caused by bacteria acquired during birth (including chlamydia and gonorrhea) or later exposure. Any redness, swelling, or discharge from a newborn's eye should be seen by a doctor within 24 hours. Blocked tear ducts are also common at this age and can mimic infection. It is generally considered normal when a minor eye discharge that is clear or slightly white, especially upon waking, which clears with gentle cleaning. However, you should contact your pediatrician promptly if a newborn under 4 weeks has any eye redness, swelling, or discharge.
Normal vs. Concerning
By Age
What to expect by age
0-3 months
Eye infections in newborns (neonatal conjunctivitis) can be serious and require urgent evaluation. Infections can be caused by bacteria acquired during birth (including chlamydia and gonorrhea) or later exposure. Any redness, swelling, or discharge from a newborn's eye should be seen by a doctor within 24 hours. Blocked tear ducts are also common at this age and can mimic infection.
3-6 months
The most common cause of eye discharge at this age is a blocked tear duct, not infection. A blocked tear duct causes watery eyes and mild mucus but without redness or true pus. If the eye is red with thick green or yellow discharge, this is likely bacterial conjunctivitis requiring antibiotic drops. Clean the eye before applying drops for best effectiveness.
6-12 months
Bacterial conjunctivitis often accompanies ear infections or colds in this age group. Your pediatrician may prescribe antibiotic eye drops or ointment. Apply drops by pulling down the lower eyelid gently and placing the drop in the pocket created. If using ointment, apply a thin ribbon along the inner lower lid. Wash hands thoroughly before and after treatment.
12-24 months
Conjunctivitis spreads easily in daycare settings. If your toddler has pink eye, they may need to stay home for 24 hours after starting antibiotic drops (check with your daycare). Wash hands frequently, use separate towels, and wash bedding. Viral conjunctivitis does not require antibiotics and typically resolves in 5-7 days.
2-3 years
Older toddlers may rub their eyes, spreading infection from one eye to the other. Teach hand hygiene and try to discourage eye rubbing. Allergic conjunctivitis (itchy, watery eyes) becomes more common at this age and is treated differently from infectious conjunctivitis. Your pediatrician can help distinguish between the types.
What to Tell Your Pediatrician
- Describe when you first noticed has an eye infection and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby has yellow or green eye discharge that persists for more than 24 hours.
- Mention if one or both eyes are red with discharge and you want to determine if antibiotics are needed.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- A minor eye discharge that is clear or slightly white, especially upon waking, which clears with gentle cleaning
- Watery eyes from a known blocked tear duct without redness or thick discharge
- Mild redness that resolves within 24 hours without treatment
- Your baby has yellow or green eye discharge that persists for more than 24 hours
- One or both eyes are red with discharge and you want to determine if antibiotics are needed
- Your baby's blocked tear duct seems to be getting worse or keeps recurring
- A newborn under 4 weeks has any eye redness, swelling, or discharge
- Your baby has severe eye swelling, cannot open the eye, has a fever with eye symptoms, or has swelling extending to the skin around the eye (possible periorbital cellulitis)
What You Can Do at Home
- Keep track of when you notice has an eye infection — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that a minor eye discharge that is clear or slightly white, especially upon waking, which clears with gentle cleaning — this is generally within the range of normal.
- At 0-3 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Follow any care instructions from your pediatrician. Keep a written log of symptoms to bring to appointments.
- While monitoring at home, seek immediate care if a newborn under 4 weeks has any eye redness, swelling, or discharge.
Related Conditions
Baby Pink Eye (Conjunctivitis)
Pink eye (conjunctivitis) is an inflammation of the clear membrane covering the white of the eye and the inner eyelids. In babies it can be caused by viruses, bacteria, allergens, or irritants. Bacterial pink eye causes thick yellow-green discharge and is treated with antibiotic eye drops. Viral pink eye causes watery discharge and resolves on its own. In newborns under 28 days, pink eye can be more serious and always requires medical evaluation.
Pink Eye (Conjunctivitis) - Viral vs. Bacterial
Pink eye (conjunctivitis) is very common in babies and toddlers. The three main types are: viral (most common - watery discharge, often accompanies a cold, resolves on its own), bacterial (thick yellow/green discharge, may mat the eye shut overnight, usually needs antibiotic eye drops), and allergic (itchy, watery, both eyes, seasonal). The key difference: viral conjunctivitis has watery, clear discharge while bacterial has thick, colored discharge. Both viral and bacterial are highly contagious and spread easily in daycare settings. Good hand washing is the best prevention.
Yellow or Green Eye Discharge in Baby
Yellow or green eye discharge in babies is very common, especially in newborns. The most frequent cause is a blocked tear duct (dacryostenosis), which affects up to 20% of newborns and usually resolves on its own by 12 months. Bacterial conjunctivitis (pink eye) is another common cause that produces thicker, more colored discharge. Simple blocked tear duct discharge tends to be milder and does not cause redness of the eye itself.
My Baby Has a Stye on Their Eyelid
A stye (hordeolum) is a small, painful red bump on the eyelid caused by a bacterial infection of an oil gland or hair follicle. Styes are common in children and usually resolve within 1-2 weeks. Treatment involves applying a warm compress for 5-10 minutes, 3-4 times a day, to help the stye drain naturally. Do not squeeze or pop a stye. If it does not improve within 2 weeks or gets larger, see your pediatrician.
Related Resources
Frequently asked questions
Is has an eye infection normal?
When should I call the doctor about has an eye infection?
When is has an eye infection normal?
What causes has an eye infection?
What should I mention to my pediatrician about has an eye infection?
Is has an eye infection normal at 0-3 months?
Is has an eye infection normal at 3-6 months?
Should I go to the ER for has an eye infection?
Does has an eye infection go away on its own?
References
- [1]American Academy of Pediatrics. Pinkeye (Conjunctivitis). HealthyChildren.org. AAP
- [2]Centers for Disease Control and Prevention. Conjunctivitis (Pink Eye). CDC
- [3]Mayo Clinic. Pink eye (conjunctivitis) in babies. Mayo Clinic
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss My Baby Has an Eye Infection.
Things to mention
- Describe when you first noticed has an eye infection and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby has yellow or green eye discharge that persists for more than 24 hours.
- Mention if one or both eyes are red with discharge and you want to determine if antibiotics are needed.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your baby has yellow or green eye discharge that persists for more than 24 hours
- One or both eyes are red with discharge and you want to determine if antibiotics are needed
- Your baby's blocked tear duct seems to be getting worse or keeps recurring
Urgent signs to report immediately
- A newborn under 4 weeks has any eye redness, swelling, or discharge
- Your baby has severe eye swelling, cannot open the eye, has a fever with eye symptoms, or has swelling extending to the skin around the eye (possible periorbital cellulitis)
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of has an eye infection are normal. Talk to your pediatrician if a newborn under 4 weeks has any eye redness, swelling, or discharge.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
Was this page helpful?
Related Medical Concerns
Baby Pink Eye (Conjunctivitis)
Pink eye (conjunctivitis) is an inflammation of the clear membrane covering the white of the eye and the inner eyelids. In babies it can be caused by viruses, bacteria, allergens, or irritants. Bacterial pink eye causes thick yellow-green discharge and is treated with antibiotic eye drops. Viral pink eye causes watery discharge and resolves on its own. In newborns under 28 days, pink eye can be more serious and always requires medical evaluation.
Pink Eye (Conjunctivitis) - Viral vs. Bacterial
Pink eye (conjunctivitis) is very common in babies and toddlers. The three main types are: viral (most common - watery discharge, often accompanies a cold, resolves on its own), bacterial (thick yellow/green discharge, may mat the eye shut overnight, usually needs antibiotic eye drops), and allergic (itchy, watery, both eyes, seasonal). The key difference: viral conjunctivitis has watery, clear discharge while bacterial has thick, colored discharge. Both viral and bacterial are highly contagious and spread easily in daycare settings. Good hand washing is the best prevention.
Yellow or Green Eye Discharge in Baby
Yellow or green eye discharge in babies is very common, especially in newborns. The most frequent cause is a blocked tear duct (dacryostenosis), which affects up to 20% of newborns and usually resolves on its own by 12 months. Bacterial conjunctivitis (pink eye) is another common cause that produces thicker, more colored discharge. Simple blocked tear duct discharge tends to be milder and does not cause redness of the eye itself.
My Baby Has a Stye on Their Eyelid
A stye (hordeolum) is a small, painful red bump on the eyelid caused by a bacterial infection of an oil gland or hair follicle. Styes are common in children and usually resolve within 1-2 weeks. Treatment involves applying a warm compress for 5-10 minutes, 3-4 times a day, to help the stye drain naturally. Do not squeeze or pop a stye. If it does not improve within 2 weeks or gets larger, see your pediatrician.
My Baby's Head Shape Looks Abnormal
Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.
Achondroplasia (Dwarfism) in Babies
Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.