IRCT20121219011822N7 IRCT 2021-09-13 Hamedan University of Medical Sciences The effect of local pressure on pain severity Evaluation of local pressure effect on needle puncture pain severity in patients candidates for spinal anesthesia 2021-07-11 anticipated 116 Complete https://irct.ir/trial/58316 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Randomization description: Samples will be randomly assigned to four blocks using Random Allocation Software. Blocking and allocation sequences for concealment will be perform by the non-involved researcher (Allocation Concealment). The sample allocation ratio will be Allocation 1:1 and will be divided into two groups of receiving pressure and control group (Assignment). Then based on blocks and allocation sequences pressure will be given to patients, Blinding description: Since the participants do not know whether applying pressure before spinal needling is a routine method or not, they are unaware of the intervention (pressure on the injection site) and think that this pressure is applied to everyone. On the other hand, all participants are only asked about the severity of the needle pain and are not aware of the pressure or lack of pressure. 3 Pain in spinal anesthesia. Intervention 1: Intervention group: In patients undergoing spinal anesthesia, with a finger a pressure about 5 kg is applied to the needle entry point just before spinal anesthesia for 15 seconds. Intervention 2: Control group: In patients who are candidates for spinal anesthesia, spinal anesthesia is performed routinely without pressure and just after prep and drep. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no more information