The darkening of the ends of the fingers in newborns is often indicative of hypoxia, which may be caused by tight clothing or low temperatures, or may be related to congenital heart disease and pneumonia. It can also be related to congenital heart disease and pneumonia. Treatment should be based on the cause of the disease, such as wearing loose clothing, keeping warm, oxygen therapy, surgery, and medication. 1. If the clothes worn by the newborn are too tight, resulting in poor blood flow, it will lead to blackened ends of the fingers, which can be normalized by changing to loose clothes. In addition, if the room temperature is too low, the baby’s finger circulation is poor, will also appear this symptom, raise the room temperature, keep the baby warm, the symptoms can disappear. 2. Congenital heart disease may also appear at the end of the finger black, can be accompanied by breathlessness and other symptoms. Oxygen therapy is needed, and in severe cases, surgery may be needed. 3. Neonatal pneumonia may also lead to blackened fingers, mainly to give anti-infective treatment, such as bacterial infections such as cefixime and other antibacterial drugs; mycoplasma or chlamydia can be azithromycin and other medications, viral infections can be used in serious antiviral drugs, such as interferon treatment. In addition, it is also necessary to ensure that the baby’s respiratory tract is smooth, if necessary, give nebulization treatment. There may be other reasons for the blackening of the end of the finger of the newborn baby, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.