mostly_gas
Super Member
This is my 5th lumbar. so far "they" have had a 50% success rate getting a spinal fluid sample. the study is working on the proteins in spinal fluid vs amyloid plaque build up in the brain, trying to predict when Alzheimer's symptoms will show in people.I had one of those a few years ago. I am allergic to the local they used, so toughed it out. Can't say that it was pleasant, but was "tolerable", if you are good at mind over matter.
Good luck!