When a child falls on the back of the head, you can judge whether the child has any problem according to the performance after the fall and the related auxiliary examination. 1. Performance after the fall: if the child has no obvious abnormality within 72 hours after the fall, such as dizziness, headache, fuzzy consciousness, projectile vomiting, etc., it is generally considered that the problem is not big, but it must be ruled out with the relevant examination. 2. Relevant auxiliary examination: generally refers to CT or MRI of the skull. This is because some children’s symptoms may not seem obvious because of minor injuries or delayed onset of the disease. For example, hidden intracranial hemorrhage or atypical skull fracture. At this point, a combination of ancillary tests is needed to assist in the diagnosis. Children who fall to the back of the head should promptly go to the pediatric department of the hospital to improve the relevant examination, and those who have problems should cooperate with the treatment under the guidance of the doctor. Usually must pay attention to the child’s safety.