Neonatal pneumonia is usually divided into infectious pneumonia and aspiration pneumonia, which is a common disease in the neonatal period and an important cause of neonatal death. Infectious pneumonia usually occurs in utero, during delivery or after birth and is caused by pathogens such as bacteria, viruses, protozoa or fungi, while aspiration pneumonia is caused by inhalation of foreign bodies such as amniotic fluid, meconium and milk. There are generally no clear five common symptoms of neonatal pneumonia. When pneumonia occurs, in addition to general symptoms such as poor spirit, loss of appetite, refusal of milk, irritability, crying, etc., depending on the type of pneumonia, common symptoms include the following: I. Infectious pneumonia: 1. Asphyxia: In the case of intrauterine infectious pneumonia, the newborn often has a history of asphyxia at birth, and in severe cases, respiratory failure, heart failure, shock, diffuse intravascular coagulation or persistent pulmonary hypertension; 2, respiratory distress: if it is a viral infection, the newborn may not have obvious symptoms at birth, usually 2-3 days after birth, or about 1 week usually appears respiratory distress, and progressive aggravation, can be manifested as cyanosis, moaning, nasal agitation; 3, fever: infectious pneumonia neonates, because of the different causative agents of pneumonia infection, there are often different degrees of The duration of fever varies, but some newborns with postnatal pneumonia may not have fever; 4. trigeminal sign: neonatal pneumonia usually has a trigeminal sign during inspiration, which refers to the depression of the suprasternal fossa, supraclavicular fossa, and intercostal space; 5. respiratory sound changes: common neonatal pneumonia lung auscultation respiratory sounds can be coarse, diminished, or wet rales on auscultation, and croup may appear in combination with viral infection. Second, inhalation pneumonia: common is the presence of nails, skin, umbilical cord contaminated with meconium. Most of the symptoms are mild in newborns who inhale less amniotic fluid, while excessive inhalation may cause severe respiratory distress, along with rapid breathing and nasal agitation in newborns, which may be accompanied by the appearance of the inspiratory trigone sign, and may even lead to death in severe cases. If the above symptoms appear, it is recommended to actively treat the newborn, and can go to the neonatal unit to perform blood tests and chest x-ray, etc., to make a clear diagnosis and determine the type and severity of neonatal pneumonia, so as to prevent the aggravation of the condition and avoid affecting the normal development of the newborn.