Results
Sixty patients were enrolled for each group(Fig. 
Consort flow diagram
Basic characteristics of participantTAP:Transversus abdominis plane block in conjunction with intrathecal morphine useSham: intrathecal morphine alone groupBMI:body mass indexValues are present as mean ± SD
Comparison Between TAP group and Sham group According to Visual Analog Scale (VAS) at Rest and with MovmentAbbreviations: VAS, visual analog scale;TAP:Transversus abdominis plane block in conjunction with intrathecal morphine useSham: intrathecal morphine alone group
Times of analgesic demand on PCA, side effects, maternal satisfaction and Apgar score at 1min and 5min in groupsData are shown as Mean SD for continuous variables and N(%) for categorical variablesP value were calculated with the variance(ANOVA) for continuous variables and with Chi-square test for categorical variables* P value < 0.05The mean(SD) times of analgesic demand on PCA within 12 h after anesthesia in the TAP group was 1.7(1.1), failed less than the Sham group of 2.0(1.7), 