What are the risks of a lumbar puncture?

Almost every doctor encounters a patient who believes a lumbar puncture will cause paralysis. paralyzed

Paralysis is impossible because the needle is inserted at the 4th to 5th lumbar vertebrae, below the spinal cord.

This misconception may come from the nerve root being irritated by the needle during lumbar puncture.

The patient may experience transient leg paralysis. Reports of cauda equina syndrome due to hematoma formation are relatively rare, only in patients with coagulopathy. Headache is the most common sequelae, occurring in 5 percent to 30 percent of patients. and small gauge needles (such as 20-22 for adults

needle), and keeping the patient supine for several hours after a lumbar puncture is believed to relieve headaches. In patients with increased intracranial pressure, enlarged tonsils are considered by most to be a potential complication after lumbar puncture; however, if the patient has a normal head CT before lumbar puncture

If so, there is no such danger.

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