Newborns crying and not sleeping at night may be caused by non-disease factors such as hunger, high indoor temperature, poor environmental adaptation, etc., or by pathological causes such as colic and intestinal flatulence, which should be dealt with according to the causes. 1. Non-disease causes: for example, starvation, high room temperature, poor environmental adaptation, etc., can cause newborns to cry and not sleep at night. You should try to keep the room temperature suitable and feed the baby to calm him/her down. 2. Pathologic causes: including intestinal colic, intestinal flatulence and so on. Colic: It will lead to paroxysmal abdominal pain and is more common at night. It can be observed and followed up. If it can not be pacified, it should be timely admitted to the hospital pediatrics. Intestinal flatulence: some babies will show intestinal flatulence after breastfeeding, at this time, you can properly burp the baby and other operations to help the baby fall asleep. Newborn babies crying at night not sleep can not be pacified, should promptly take the child to the hospital pediatrics. Identify the cause and then under the guidance of the doctor to deal with.