Because the skull protects the brain, a fall while a child is playing does not usually cause intracranial bleeding. Bleeding in the head is more dangerous and should be taken seriously. Bleeding from an intracranial injury can be life-threatening if there is a small amount of bleeding in a critical area. This is especially true for young, non-verbal children who cannot express themselves at this time. For children who have fallen, the observation period is usually one week, and the child can only be released from observation if he or she behaves in a relatively normal manner. Within a week, you need to observe the child’s mental state, whether the spirit is good or not, and observe whether the child has vomiting phenomenon. If there is any vomiting that is different from the usual regurgitation, such as projectile vomiting, it is necessary to go to the hospital for diagnosis and treatment.