Lumbar Puncture
A lumbar puncture or LP is a diagnostic test that uses a small needle to collect your spinal fluids. It is done in the lumbar area around the lower back. The main purpose is to find out the presence of any inflammation or infection around your brain, which can trigger tension headaches. Though the process is mostly safe, there might be some possible side effects such as back pain, discomfort, internal bleeding, and headache. [2]
