Hydrocephalus can occur in some patients, mainly due to the accumulation of cerebrospinal fluid in the cranial cavity. However, most patients do not know much about their condition and do not know how to detect hydrocephalus. We hope that this will help patients understand their condition. How can hydrocephalus be detected? The diagnosis of hydrocephalus mainly requires imaging examinations, in addition to neurological examination and physical examination to further understand the condition. The most effective imaging tests are cranial CT and cranial MRI. These tests can effectively determine whether there is dilatation of the ventricles, widening of the arachnoid space, and interstitial edema, and the doctor can determine the severity of the patient’s condition based on the test results. Once hydrocephalus is identified and the doctor understands the severity of the condition, active treatment is required. Most hospitals use medication and traditional surgical treatment. This is not a very effective treatment for patients today. Most hospitals in China use ventriculoperitoneal shunt surgery, which is a procedure that uses a drainage tube to drain excess cerebrospinal fluid from the brain cavity to the abdominal cavity or other locations. The surgery can be effective, but it is prone to complications, and many patients are concerned that they will not get positive and effective improvement from the surgery.