Hydrocephalus is usually caused by congenital malformation, infection, intracranial hemorrhage, tumor, etc. Shunt is a common way to treat hydrocephalus, but from the clinical situation, some patients need a second operation due to blockage or infection caused by traditional shunt, and another situation is more serious, some patients with brain hemorrhage or tumor have to cause skull defect combined with hydrocephalus during the treatment process, which is relatively difficult to treat. It is also relatively difficult to treat. Many patients who are facing hydrocephalus shunt and skull repair at the same time have been confused about whether hydrocephalus shunt and skull repair can be done together. If they can be done together, it will save a lot of time. Hydrocephalus bypass and cranial repair are two completely different procedures, and the decision of whether they can be done together depends on the actual situation of the patient. In the first case: for patients whose cerebrospinal fluid is up to standard, clear and transparent, and there is no intracranial infection, both procedures can be done at the same time. In the second case, for patients with impurities in the cerebrospinal fluid, who do not meet the standard or who have intracranial infections, intracranial infection control and cerebrospinal fluid purification are required first, followed by shunt surgery, and then cranial repair after the condition has stabilized. Hydrocephalus shunt surgery and cranial bone repair are generally available in local hospitals, however, complications such as blockage, infection, and inadequate shunt are also common after conventional shunt surgery, and there may be a risk of titanium mesh exposure after cranial bone repair with titanium mesh. Many patients who have been evaluated by professional doctors that both procedures can be done at the same time have gone to Beijing for medical treatment. The cerebrospinal fluid specialist technique, however, effectively avoids the various problems that exist with conventional shunts.