The purpose of an infant skull x-ray is primarily to screen the infant for cranioencephalopathies. The skull X-ray of an infant is done to rule out whether the birth canal has caused intracranial hematoma and intracranial hemorrhage due to extrusion during delivery, and whether there are any symptoms of ischemic-hypoxic encephalopathy. Observe whether there are abnormal fluid dark areas in some organs such as the subarachnoid space. Thus, it will help the doctor to determine whether the newborn has craniocerebral diseases. To summarize, it is still necessary for the mother to do skull X-ray for the baby under the guidance of the doctor, and nowadays the medical technology to do skull X-ray has almost no effect on the child, and the amount of rays is very small. Skull X-ray can detect many diseases, if the baby has any problems, it can be early detection and early treatment.