Hydrocephalus and craniosynostosis are two common and serious problems, and some patients with cranio-cerebral trauma often suffer from both diseases. Both hydrocephalus and craniosynostosis are extremely dangerous to human health, and their treatment must be properly grasped. Can hydrocephalus and skull repair surgery be done at the same time? It is believed that this is a problem for many patients and medical professionals. The treatment of hydrocephalus requires ventriculoperitoneal shunt surgery, while cranial defect requires cranial bone repair surgery. Many doctors in local hospitals advocate doing both surgeries at the same time, which may shorten the treatment period and help save the cost of surgery at the same time, but it also easily leads to surgical failure, which makes the patient more painful and increases the treatment burden. Because the area of hydrocephalus shunt and skull repair surgery is very wide, it is not only difficult to sterilize and expose the wound for a longer period of time if performed at the same time, so it is easy for infection to occur, which makes the later treatment and handling more difficult, and the risk of fatal if the infection is serious. From the above, it can be seen that the issue of whether hydrocephalus and skull repair surgery can be done at the same time should be done carefully, do not play with your own life and health. The current clinical science and effective treatment principle is to first solve the hydrocephalus problem through a set of specialized cerebrospinal fluid treatment techniques. When the amount of cerebrospinal fluid and the shape of the cerebrospinal fluid components in the patient’s skull are up to standard and the hydrocephalus problem is properly resolved, then skull repair is performed, which not only restores the skull to its full beauty but also solves the hydrocephalus problem, which is the ideal state of treatment.