The cost of operation is about 100 yuan, and the price of what kind of drainage tube is used for lumbar cistern is different, ranging from 3,000-4,000 yuan for expensive imported tube to tens of yuan for cheaper one. Generally put for two weeks, too long will easily lead to intracranial infection. The extra cost during the tube release is the cost of nursing the tube and the cost of using antibiotics to prevent infection, which is generally not too expensive.