<prompt> Post spinal headache is due toCSF leaks in the duraFine needleToxic effects of the drugTraumatic damage to nerve roots  <response>: A. i.e. CSF leaks in the dura 517- Lees synopsis of anaesthesia 13th It is low pressure headache due to seepage of CSF from dural rent hole created by spinal needle. The loss may be around 10 ml hrPost spinal headache - is due to seepage of CSF. Can be minimized by using smaller bore needle 360-KDT 6th More common in young pregnant patients and with accidental dural puncture rate during epidural anaesthesia using Touhy needle 60 - 80. Reduced by the introduction of size 25 G and 27G whitacre pencil point needles. Which replaced cutting needles Typical location is bifrontal and or occipital CSF leakage results in changes in hydrodynamics of brain causing traction on pain sensitive structures like dura, vessels and tentorium producing painTreatment - Caffeine, sumatriptan and adreocorticotropic hormoe, epidural blood patch Related to a reduction in CSF volume due to leakage through the dura 300 - Current. Diagnosis and treatment - pain 