The first reason - temperature: it is likely that the ambient temperature of the baby is relatively inappropriate, and the ambient temperature is too hot or too cold, which may cause the baby to cry.
The second reason - hungry: the baby may cry because he is hungry, and if the baby is not full, it is easy to cry.
The third reason - physical discomfort: it may be due to the baby's physical discomfort caused by crying, if the baby's body has any uncomfortable reaction, it is easy to use crying to express their pain.
The fourth reason - nature: related to the nature of the baby, if the baby is a difficult temperament, then it is easy to cry in the process of growing up.
The fifth reason - physical problems: If the baby's body and brain damage, it may also cause the baby's crying performance.
The sixth reason - sleep: the baby's crying and sleep are related, if the baby has sleep disorders, then it will also form a situation of crying at night.
Finally, when the child is crying, give the baby a common baby language to the baby! There may be unexpected gains, moms and dads remember to collect oh!