For patients with hydrocephalus, if there is significant pain, it is mostly caused by increased intracranial pressure, often seen in progressive hydrocephalus, or obstructive hydrocephalus. As the cerebrospinal fluid gradually increases and accumulates, it leads to the expansion of the ventricular system and causes extensive hydrocephalus, accompanied by gradually increasing intracranial pressure. To alleviate the pain, one might consider taking oral long-acting analgesics to help relieve the pain. Additionally, the use of mannitol or performing a lumbar puncture to release a small amount of cerebrospinal fluid may be considered to ease the pain. However, the key is to achieve the ultimate resolution of the disease through surgery.