A newborn baby crying at night may be caused by physiological factors such as environmental factors or colic. For physiological factors caused by crying, the use of enhanced care can be relieved; disease caused by crying may need to be treated with the corresponding medication. 1. Physiological factors: Babies may cry and stay awake if their sleeping environment is too noisy, the room temperature is not suitable, they are hungry, or after urinating or defecating. It is necessary to carefully observe the baby’s needs, strengthen the nursing care, and remove the triggers of the child’s crying. 2. Pathological factors: colic: newborn babies may be due to indigestion and other triggers of intestinal colic, will cry and do not sleep, at the same time increased exhaust, overflow of milk and other symptoms, can be oral simethicone and other relief of intestinal colic. Newborn babies always cry and do not sleep at night, there may also 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, and then give targeted treatment or treatment. All of the above medications should be used under the guidance of a doctor.