How would a spinal tap help hydrocephalus?

A spinal tap, or lumbar puncture, can help in the diagnosis of hydrocephalus by allowing doctors to analyze cerebrospinal fluid (CSF) for abnormalities. In some cases, it can also provide immediate relief by draining excess CSF, reducing intracranial pressure. This temporary reduction can help alleviate symptoms and guide further treatment options, such as the placement of a shunt to manage the condition long-term.