<prompt> Post dural spinal puncture headache is due toSeepage of CSFFine needleToxic effects of the drugsTraumatic damage to nerve roots  <response>: Seepage of CSF 517 - Lees 13th 360-KDT 6th Post spinal headache is due to seepage of CSF: can be minimised by using smaller bore needle KDT Typical location is bifrontal and or occipital It is more common in Young pregnant patients and with accidental dural puncture rate during epidural anaesthesia using Touhyneedle 60 - 80 Reduced by introduction of size 25 G and 27 - G whitacre pencil point needles. Which replaced cutting needles Paralysis of cranial nerve. All cranial nerves except 1st, 9, 10th can be involved after spinal Anaesthesia. Most commonly 90 6th nerve is involved Because of the longest course of 6th nerve 