The baby’s blue center may be caused by thin skin, congenital heart disease or respiratory disease. If it is a physiological factor, there is no need to worry too much. If it is accompanied by other symptoms, you need to go to the hospital in time to improve the relevant examination to determine the cause and then treat the problem. Common causes and treatment methods a. Physiological factors: Because the baby’s skin dermis is thin, capillaries will be more obvious, and the local cyanotic veins will make the human middle look blue. If the baby has no other discomfort symptoms, no special treatment is needed. Second, pathological factors: 1, congenital heart disease: such as Farrow’s tetralogy of Fallot, in addition to the human middle blue there are fingers and toes end of the blue-purple, often accompanied by palpitations, shortness of breath and other symptoms. If the diagnosis is confirmed, surgical and interventional treatment should be carried out according to medical advice, and the specific treatment time should be decided according to the child’s condition; 2. Respiratory diseases: such as severe pneumonia and other diseases, symptoms such as peri-lip cyanosis, cough, sputum and even blocked airway will occur during the attack. After the diagnosis is confirmed, the baby’s discomfort can be relieved by oxygen and nebulization, and sensitive drugs can be selected for the causative organisms, such as amoxicillin, cephalosporin and penicillin for bacterial infections, and azithromycin and clarithromycin for mycoplasma infections. Parents should often open the windows of the baby’s room to ensure that the baby’s respiratory tract fresh air. At the same time, you can let your baby have more sunshine and outdoor activities, which can enhance your child’s physical fitness.