It should be said that every child cries, so the constant crying could be character, emotions, or discomfort, and requires careful observation by parents. Children cry mainly to express their needs and thoughts, so some children are born with a quick temper and like to cry to solve problems when they are not satisfied. Other children are related to family education, crying can meet the needs, so more and more use crying to communicate with adults to achieve the purpose. Of course, there are many children who cry because they are really uncomfortable. Lack of sleep is often a common reason for children to cry. Keep your child on a proper routine and don’t make him over-excited when he should be sleeping and sleepy and have trouble falling asleep or being able to sleep. Some children may have difficulty falling asleep although they are sleepy due to calcium deficiency, etc. These require guardians to carefully observe the triggers for crying. Some small children may also cry because they are hungry, some children are having headaches, gastrointestinal discomfort, etc. They do not express but very uncomfortable feelings and also cry a lot. It is important to see if the crying is accompanied by head banging, jerking, refusing to eat or drink and so on. In short, children crying is a normal phenomenon, probably through a way of crying to express their needs and thoughts, parents must pay attention to the reasons why children cry in a timely manner. If the child’s crying condition is particularly serious, it is time to seek medical help.