When a newborn cries and turns purple, it can be considered to be related to neonatal respiratory distress syndrome, congenital heart disease or lung infection. 1. Neonatal respiratory distress syndrome: its occurrence can be associated with preterm delivery, mother’s diabetes, elective cesarean section, placental abruption, perinatal asphyxia and other etiological factors, in the crying, due to the body’s increased oxygen demand, and the child’s lung function is abnormal, can cause the whole body bruises. 2. Congenital heart disease: if complete transposition of the great arteries occurs, venous blood can be injected into the transposed aorta through the right heart, thus supplying the whole body, and the whole body bruises and gradually aggravates when the activity increases or when the child cries. 3. Lung infection: If bacterial pneumonia occurs, if it causes obvious systemic symptoms of poisoning, the child can also be seen restlessness, coughing, fever, cyanosis and other clinical manifestations, and in severe cases, there can be shock. Newborns cry purple, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.