With the gradual improvement of people’s living standard and health requirements, more and more people are more willing to spend money for their health, but not all diseases need treatment. Hydrocephalus is a common disease in brain surgery. Most people know that once they have hydrocephalus, they need to undergo surgery, but the risk and cost of surgery is a pain in the heart of many people. Today, I will give you some information, there is a class of hydrocephalus, in fact, do not need surgery, or even do not need medication, and once the treatment, and the way is not correct, may image the patient’s health, and even life-threatening. Clinically, there is a type of hydrocephalus that belongs to relatively static hydrocephalus, that is, hydrocephalus that has developed to a certain degree is basically in a state of no progress, or very slow progress. As we all know, hydrocephalus is actually a cerebrospinal fluid circulation problem, resulting in abnormal accumulation of fluid in the intracerebral ventricles and subarachnoid space, and excessive cerebrospinal fluid cannot be absorbed by normal circulation, thus compressing the brain tissues and producing a series of clinical symptoms, and in severe cases, it may lead to disability and death. Today’s category of relatively static hydrocephalus, most of which is congenital, due to various reasons for the early lack of radical treatment (family economic reasons, parents pay insufficient attention to, etc.), part of the children may be due to hydrocephalus progression of faster children died, part of the hydrocephalus is not treated, but ultimately due to the development of slower, to achieve a kind of balance of its own. Some of these patients may suffer from dementia, developmental delay, mental retardation, visual impairment, macrocephaly and so on due to the pressure on brain tissues, while some of them may only have occasional headache symptoms without any other obstacles, and they can also get married and have children normally without much impact on their lives. So for this kind of hydrocephalus, is it necessary to treat and when is the best time to treat it? For this type of hydrocephalus, detailed evaluation should be carried out. If the symptom of brain tissue compression is not obvious and does not have a great impact on life, it is suggested that observation can be made; because the ventricles of this type of hydrocephalus are generally larger, if surgery is carried out hastily, intracranial hemorrhage may occur after the operation, and even life is at risk. Does this type of hydrocephalus not need to be treated? No. This type of hydrocephalus requires dynamic observation. If the patient develops headache, vomiting, unsteady walking, etc., he/she should consult the doctor in time to evaluate whether it is caused by hydrocephalus. If surgical treatment is needed, care must be taken not to proceed directly to surgery to prevent sudden changes in pressure after surgery, which may lead to intracranial hemorrhage and life-threatening conditions.