Babies once put to bed to cry need to first determine the cause of the disease, and then to deal with, such as taking vitamin D supplementation, the application of probiotics and so on. 1. Often held to develop a bad habit: If the baby is usually held for a long time, developed a bad habit, there will also be a put to bed on the phenomenon of crying. At this time you need to gradually reduce the time to hold the baby, so that the bad habits gradually corrected. 2. Vitamin D deficiency: if the baby lacks vitamin D, in addition to put to bed on the cry, there will be restless sleep, excessive sweating, shaking the head, pillow baldness and other manifestations. At this time, the baby should be supplemented with vitamin D, more sunshine, etc., can be gradually relieved. 3. Gastrointestinal dysfunction: if the baby because of cold and other factors cause gastrointestinal discomfort, may be because of bloating and crying performance, especially when put to bed will cry. At this time you need to properly adjust the baby’s gastrointestinal function, appropriate warmth, you can choose to take oral probiotics and other drugs, such as bifidobacteria, etc. to regulate. 4. Infection: If the baby has an infection, such as pneumonia, urinary tract infection, central nervous system infection will also appear crying, poor appetite, fever and other manifestations, at this time you need to pay attention to the baby’s other symptoms and timely medical attention to clarify the cause of the disease and then treatment. As you can see, when a baby cries when put to bed, parents should pay attention to whether the baby has other uncomfortable symptoms, in order to consult a doctor in a timely manner, under the guidance of the doctor for treatment. The use of medication should follow the doctor’s instructions.