Results: Regarding VAS score, parturients with pain score up to 3 in group Para-TAP accounted for a high rate at rest and a low rate on movement, whereas group Diclo-TAP and Para-Diclo accounted for a high rate both at rest and on movement; group Para-TAP was more effective than group Para-Diclo in the period of 4 to 6 h; group Para-Diclo was more effective than group Para-TAP from 12 to 24 h; group Diclo-TAP was more effective than group Para-Diclo from 2 to 8 h. FAS score of A level in group Para-TAP accounted for 90% in the period from 1 to 8 h, more than 50% from 8 to 16 h, more than 60% from 16 to 24 h and 23.33% parturients required IV morphine rescue.