What symptom might indicate cerebrospinal fluid accumulation in the brain of a newborn?

Persistent vomiting in a newborn can be a significant symptom indicating the potential accumulation of cerebrospinal fluid (CSF) in the brain, most commonly associated with conditions such as hydrocephalus. In newborns, an increase in intracranial pressure due to CSF buildup can lead to various neurological symptoms, and vomiting can occur as a direct result of this pressure change. This vomiting is often non-bilious and may appear forceful, which can be alarming.

Other symptoms that may accompany this include changes in feeding patterns, irritability, bulging fontanelles, and altered level of consciousness. Recognizing persistent vomiting, particularly in the context of other concerning signs, is critical in the early identification of potential neurological issues, enabling timely intervention to prevent further complications.