Objectives: This study aimed to determine the effect of lower leg compression during cesarean section (CS) on post-spinal hypotension (PSH) and neonatal hemodynamic parameters.Methods: This study is a nonrandomized controlled clinical trial conducted in the cesarean delivery unit of the National Medical institute,Damanhour,Egypt.The sample included 120 parturients (60 intervention and 60 control).The researchers developed three tools for data collection: sociodemographic data and reproductive history interview schedule,electronic monitoring of mateal hemodynamic parameters,and neonatal hemodynamic assessment sheet.All parturients received ordinary preoperative care.For the intervention group,a long elastic stocking (ordinary pressure 20-30 mmHg,1 mmHg =0.133 kPa) was applied on both legs during cesarean section.The control group received the same care without the elastic stocking.Results: Systolic blood pressure,diastolic blood pressure,and mean arterial blood pressure were significantly higher in the intervention group throughout the entire operation period except in the last 5 -15 min.Heart rate was significantly lower in the intervention group.Only 13.3％ of the intervention group took ephedrine compared with 45％ of the control group.Apgar score was higher among neonates of intervention group compared with the control group at 1 min.Neonatal acidosis was significantly higher in the control group than in the contral group.Conclusion: Lower leg compression technique can effectively reduce PSH and neonatal acidosis.