The authors corrected the abnormal fetal position in 413 cases of pregnant women by the auricular plaster therapy (APT) with a success rate of 83.3%--remarkably higher than treatment by knee-chest positioning. Further analysis showed that APT was also superior to the knee-chest positioning for primiparae, breech fetal position, and pregnancies over 33 weeks. The authors also noted the clinical signs of successful cases and failures.