The prevalence of hydrocephalus is increasing, but there are still many people who do not understand what hydrocephalus is. Many people may still not understand what hydrocephalus is, or even wonder if water can really enter the brain. Instead of water, there is water in the brain, called cerebrospinal fluid (CSF), and the formation of hydrocephalus is inseparable from CSF. Cerebrospinal fluid (CSF) is a colorless, transparent fluid that is quantitatively present in the central canal of the spinal cord, the ventricles of the brain, and the subarachnoid space, and plays an important protective and supportive role for the brain and spinal cord. If there is an obstacle to the absorption of the cerebrospinal fluid, resulting in an overproduction of cerebrospinal fluid, hydrocephalus can occur. Hydrocephalus has a significant impact on health, destroying brain function, causing intellectual problems, and leading to dementia. Hydrocephalus can also cause some physical movement disorders, limiting the movement of the limbs and even affecting the patient’s ability to take care of himself. Hydrocephalus can also cause visual and hearing impairment, resulting in hearing loss and blindness. Hydrocephalus has many harmful effects, so it is important to go to the hospital for treatment. However, hydrocephalus should be treated in neurology or neurosurgery? Many patients do not understand, here to tell you, a small number of mild hydrocephalus can be treated by internal medicine, or the early stage of the disease can be relieved by internal medicine, but most of the main need to go to neurosurgery registered for surgical treatment.