When a child falls and hits the back of the head, it is a very dangerous thing. Usually, children are too young to express their feelings through words, so parents need to observe the child’s mental state and wound condition to make a preliminary judgment, and it is generally recommended to go to the hospital for a clear diagnosis, especially when there is depression, drowsiness, crying and unfavorable limb movement, which requires immediate medical treatment. 1. Mental state: It is normal for children to cry when they hit the back of the head, so parents do not need to be overly nervous. If the child’s mental state is good after crying, without depression, drowsiness, unfavorable limb movement, and can eat normally and sleep normally, the child can be observed for the time being. 2. Wound condition: observe the child’s wound whether there is bleeding, swelling, such as no scalp breakage, can be used to relieve the treatment of ice or compression, in the ice during the need to closely observe the child’s respiration, mental state, limb activity and so on. If there is depression, lethargy, crying, limb activity is unfavorable, indicating that the condition is more serious, there may be intracranial hemorrhage, brain damage, parents need to immediately take the child to the hospital to do nuclear magnetic or CT, to confirm that there is no intracranial hemorrhage symptoms, timely treatment, to avoid serious consequences.