To study the analgesia efficacy of drugs combined with acupuncture analgesia fir painless labir

462 normal pregnancy women were observed. During the latent phase in labor

several analgesia meth-ods: acupuncture analgesia

analgesics

magnetotherapy and auricular acupressure

TENS combinedwith dihydroetorphine were used respectively. While the intrauterine pressure and the peripheral con-tent of β-EP were measured during labor

the experiments of SEPS were also performed on healthyadults to demonstrate the analgesia efficacy of those analgesia methods.The combination of drugs with acupuncture is an excellent method for painless labor without anycomplications and all the mothers and babies are safety. The effectiveness is 97. 5%. The resultsdemonstrate that the mechanism of analgesia efficacy should be regulated the incoordinate uterine ac-tion and improve the hypertonic status of uterus

but also can decrease the pain threshold and elevatethe tolerance of uterine contractions during labor.