Tetralogy of Fallot is a congenital heart disease with primary clinical manifestations including cyanosis and respiratory distress, requiring timely medical attention and professional treatment.

Neonatal cyanosis is a common symptom. It is caused by a decrease in hemoglobin levels in the newborn’s capillaries beyond a certain level.

Cyanosis is one of the common symptoms in the neonatal period, caused by a decrease in hemoglobin levels in the newborn’s capillaries beyond a certain level. This article introduces the symptoms and possible causes of neonatal cyanosis.

Newborns with purple lips may be due to catching a cold or illness. It is recommended to undergo a detailed examination to determine the cause.