Hydrocephalus is relatively serious. When hydrocephalus occurs, it gradually affects the patient's motor functions of the limbs, causing weakness in one or both sides, difficulty in lifting, walking impairments, difficulty performing fine motor actions, and ataxia. It may even lead to frequent falls. Additionally, there are significant cognitive impairments, characterized by reduced intelligence levels, decreased computational abilities, and even certain degrees of language dysfunctions. Patients may also exhibit significant personality changes, such as feelings of anxiety, depression, apathetic expressions, and a dislike for communication and interaction with others.