Why Do Babies’ Sclerae Appear Blue?

Some new mothers may notice that their newborn’s sclera (the “white” of the eye) appears white or pale and become concerned that this might indicate an underlying medical condition affecting the infant’s development. So, what causes a baby’s sclera to appear bluish?

Causes of Bluish Sclera in Infants

A bluish tint to the sclera is medically termed “blue sclera.” In many cases, this is a normal physiological phenomenon. Shortly after birth, an infant’s sclera is relatively thin, allowing the underlying choroid—a bluish-black vascular layer—to show through, resulting in a pale blue appearance.

However, if an infant presents with bluish sclera alongside pallor (pale complexion), anemia may be the underlying cause—particularly chronic iron deficiency. Iron plays a critical role in collagen synthesis within the scleral connective tissue. Iron deficiency can lead to thinning of the sclera, thereby reducing its ability to mask the dark blue–black color of the underlying choroid, resulting in a visibly bluish sclera. Recovery from this condition is gradual. Dietary interventions—including increased intake of iron-rich foods such as spinach, lean meat, eggs, and milk—can help. Calcium supplementation may also be beneficial, administered either through diet or, when necessary, under medical supervision via prescribed supplements. In severe cases, prompt medical evaluation at a hospital is recommended to identify the precise cause and initiate appropriate treatment. Wishing your baby optimal health!

Parents are advised to consult a pediatrician for a thorough evaluation, including routine blood tests (e.g., complete blood count). Additionally, close observation at home is essential. We hope this information proves helpful to you.