Medical Conditions

Subconjunctival Hemorrhage in Newborns

The short answer

A subconjunctival hemorrhage is a bright red patch on the white of the eye caused by a small broken blood vessel under the conjunctiva (the clear membrane covering the eye). This is very common in newborns, occurring in up to 30-40% of vaginal deliveries due to pressure during birth. It is painless, does not affect vision, and resolves completely on its own within 1-3 weeks without any treatment.

By Age

What to expect by age

Subconjunctival hemorrhages are most often noticed in the first few days after birth. They appear as a flat, bright red patch on one part of the white of the eye. The baby is not bothered by it and the eye is otherwise normal with no discharge, swelling, or tearing. The blood slowly reabsorbs over 1-3 weeks and may turn yellow or brownish as it fades, similar to how a bruise changes color.

Birth-related subconjunctival hemorrhages should have resolved by now. New hemorrhages at this age are uncommon but can occur after a bout of hard crying, coughing, or vomiting. They remain harmless and resolve on their own. If hemorrhages are occurring repeatedly without an obvious cause, discuss this with your pediatrician.

A subconjunctival hemorrhage at this age might result from a minor eye injury, forceful coughing or vomiting, or rubbing the eyes. A single episode is not concerning and does not require treatment. Multiple or recurrent episodes may prompt your doctor to check for bleeding disorders, though this is rare.

Toddlers may develop subconjunctival hemorrhages from minor trauma, coughing, or straining. The appearance can be alarming, but the condition is benign and self-resolving. If your child has a subconjunctival hemorrhage associated with an eye injury, ensure there is no deeper damage by having the eye evaluated if there is pain, vision changes, or discharge.

What Should You Do?

When to take action

Probably normal when...
  • A bright red flat patch appears on the white of a newborn's eye within the first few days after vaginal delivery
  • The red patch is not raised, the eye is not swollen, and there is no discharge
  • The baby shows no signs of discomfort and the eye functions normally
  • The red patch gradually fades over 1-3 weeks without treatment
Mention at your next visit when...
  • The hemorrhage does not resolve within 3 weeks
  • Your baby develops recurrent subconjunctival hemorrhages without an obvious cause like hard crying or coughing
  • The hemorrhage occurs in an older infant or toddler alongside easy bruising elsewhere on the body
Act now when...
  • The red eye is accompanied by eye pain, significant swelling, discharge, or the baby cannot open the eye, which could indicate a more serious eye injury or infection
  • A subconjunctival hemorrhage occurs after head trauma, especially if the baby also has other bruising, vomiting, or behavioral changes, as this could indicate non-accidental injury or other serious conditions

Sources

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.

Adenoid Hypertrophy and Breathing

Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.

Air Quality and Baby Health

Babies and young children are more vulnerable to air pollution than adults because they breathe faster, their lungs are still developing, and they spend more time close to the ground where some pollutants concentrate. The EPA recommends keeping babies indoors when the Air Quality Index (AQI) exceeds 100 (orange level). During wildfire smoke events, keep windows closed, use air purifiers with HEPA filters, and monitor your child for coughing, wheezing, or difficulty breathing. Long-term exposure to air pollution can affect lung development.

Altitude Sickness in Babies

Babies and toddlers can experience altitude sickness when traveling above 5,000-8,000 feet (1,500-2,500 meters). Symptoms are harder to recognize in infants because they cannot describe how they feel. Watch for unusual fussiness, poor feeding, disrupted sleep, vomiting, and fast breathing. Gradual ascent is the best prevention. Most pediatricians recommend avoiding sleeping at very high altitudes (above 8,000 feet) with infants when possible, and descending immediately if symptoms appear.

Amblyopia (Lazy Eye) Treatment Timing

Amblyopia (lazy eye) is the most common cause of vision loss in children, affecting 2-3% of the population. It occurs when one eye develops weaker vision because the brain favors the other eye. Early detection and treatment are critical because the visual system is most responsive to treatment during early childhood. Treatment is most effective when started before age 7, though improvement is possible at older ages. Treatment options include patching the stronger eye, atropine eye drops, glasses, or a combination.