The child’s neurological development is not yet perfect, easy to appear scared, at this time manifested in crying, sleep instability, appetite reduction and so on. 1. Crying: When a child is frightened, his or her sense of security decreases and he or she is prone to crying, hoping to be pacified by parents. 2. Unstable sleep: When the child is frightened, the nervous system will be more sensitive, and the child will wake up easily during the night. 3. Decreased appetite: The digestive system is also affected by the nervous system, and when a child becomes mentally unstable due to fright, he or she will have a decreased appetite and eat less. If the child is frightened, parents need to provide adequate reassurance to improve the child’s sense of security and ease the discomfort. If the discomfort persists and cannot be relieved, you can go to the hospital and intervene under the guidance of the doctor.