There are many types of intracranial hemorrhage, some of which do not require and cannot be treated with a lumbar puncture, such as hematomas in the brain, in which case performing a lumbar puncture is often risky and can lead to rebleeding or brain herniation. There are some conditions that can be treated with a lumbar puncture, such as subarachnoid hemorrhage, which can be diagnosed and treated by releasing hemorrhagic cerebrospinal fluid through a lumbar puncture. Some intracerebral hemorrhages can also be treated with lumbar puncture, which can release hemorrhagic cerebrospinal fluid, or with continuous drainage of the lumbar pool, which can effectively relieve symptoms. However, lumbar puncture has certain risks, and should be operated aseptically and the indications should be strictly controlled.