Life is full of accidents and diseases that are unpredictable and difficult to control. The only thing we can do is to actively seek effective measures to deal with them when they come suddenly. Hydrocephalus is one of the more common diseases today, and is a major challenge for many neurosurgeons. Hydrocephalus is actually quite understandable. It is nothing more than the gathering of too much cerebrospinal fluid in the patient’s ventricles that cannot be drained in time, resulting in progressive dilatation of the ventricular system, which causes various clinical syndromes such as dizziness, vomiting, mental decline, and motor impairment. In addition, many patients can also suffer from hydrocephalus after emergency craniotomy due to traumatic brain injury or cerebral hemorrhage. What about hydrocephalus after craniotomy? In general, patients who undergo craniotomy not only face the problem of hydrocephalus after surgery, but also may face the big problem of skull loss, which has great impact on health. Therefore, patients who have hydrocephalus after craniotomy must pay special attention and go to a regular hospital as soon as possible. If not treated in time, it can easily lead to many adverse consequences. For hydrocephalus caused by craniotomy, the main treatment method in many hospitals is shunt surgery, which uses a tube to drain the excess cerebrospinal fluid within the patient’s brain to be absorbed elsewhere in the body. However, a large number of clinical cases have demonstrated that this traditional shunt procedure has a high failure rate, is prone to postoperative infection, and carries the risk of shunt blockage. A safer, systematic way to address hydrocephalus is needed.