Why Ache After Lumbar Puncture Needle?

Lumbar puncture needle is used to Pierce the skin, subcutaneous tissue, supraspinous ligament, interspinous ligament, ligamenta xanthoxylum, epidural and enter the subarachnoid space in order to obtain cerebrospinal fluid. When the needle passes through the above tissue, there will be certain damage, but these injuries are sterile and small, but it is also an injury that can not be ignored. Even a small nerve may be damaged, so the phenomenon of lumbar distension after puncture is relatively common.