The primary symptom of chylothorax in newborns is respiratory distress, which can manifest as rapid breathing (tachypnea), grunting, flaring of the nostrils, and retractions. Additionally, affected neonates may exhibit poor feeding, cyanosis, and lethargy. In severe cases, the accumulation of fluid in the pleural space can lead to a decrease in lung expansion and compromise oxygenation.
