Most babies do not affect their intelligence after a head fall. Babies will gradually crawl from 8 months of age onwards, and at this time there is no sense of security, it is easy to fall from the sofa, bed, etc. to the ground, but the baby’s fontanelle is not completely closed at this time, there is a certain buffer. Of course, after the fall, we should pay attention to observe the baby’s mental state, if the baby’s general condition is good, no abnormal crying, restlessness or drowsiness, depression, vomiting and other phenomena, most of them are not serious. If the baby has symptoms such as restlessness, jet vomiting or drowsiness after the head fall, go to the hospital promptly and have a head CT examination if necessary to avoid intracranial hemorrhage. If there are abnormal changes in the skull and brain, it is necessary to follow up regularly to observe whether there is a combination of mental retardation.