Night crying refers to a disease in which children cry as usual at night and during the day, or cry regularly every night, or even cry all night.

There are many reasons why children cry at night, such as fever, fright, insect disease, aphtha, hunger, wet urine and so on. Some are normal reactions of children, and some are pathological. For children crying at night caused by hunger or diapers, it should be found in time that crying at night can stop after breastfeeding and changing diapers. Some children have the habit of sleeping with the light on at night. I cry when I turn off the lights, but I don't cry when I turn on the lights. This is because parents often work at night and can't sleep in separate rooms. Children's unintentional bad habits. The indoor lights should be dimmed gradually, so that children can get used to the changes of lights and finally turn off the lights.