Post-dural puncture headache (PDPH) is seen more frequently in pregnant women due to stress,
dehydration, intra-abdominal pressure, and insufficient fluid replacement after delivery.
Obesity protects against PDPH in pregnant women; increased intra-abdominal fat tissue reduced
cerebrospinal fluid leakage by increasing the pressure in the epidural space. Therefore, this
study investigated the influence of body mass index (BMI) on PDPH in elective caesarean
section patients in whom 27G spinal needles were used.