Sunken eyes in infants

Sunken eyes in infants: Sign of severe dehydration

Sunken, "sunken" eyes are one of the classic clinical signs of significant dehydration in infants. This symptom indicates a moderate to even severe degree of dehydration and is a "red flag" that requires close attention and, in most cases, medical consultation. Unlike dry mucous membranes, which appear in early stages, sunken eyes indicate a more serious fluid loss.

Why do the eyes "sink"?

The eyeball sits in the orbital socket (orbit) and is surrounded by fatty tissue and other soft tissues that consist largely of water. When the body loses a substantial amount of fluid, the volume of these tissues decreases. They essentially "deflate," causing the eyeball to appear deeper in the orbit.

Sunken fontanelle – a concurrent dangerous symptom

Very often sunken eyes are accompanied by a sunken large fontanelle (soft spot on the infant’s head). The mechanism is the same – reduced fluid volume in the body causes the fontanelle "collapse" inward. This is also a sign of significant dehydration.

What does this mean for parents?

The appearance of sunken eyes indicates that the infant’s body has already lost about 5-10% of its fluid. This symptom is rarely isolated and is usually accompanied by other signs of moderate and severe dehydration, such as lethargy. If you notice sunken eyes in your child, it is a direct indication to seek medical attention immediately.