In this study, a single blind randomized trial is carried out in order to compare placental detachment times when Ren Mai 6 is stimulated and when a different placebo point is used. So, a lower detachment time is assumed to be related to a higher uterine contraction, and, therefore, a decrease in the hemorrhage postpartum. We focus on measuring the time it takes to placental delivery due to the fact that, if this point promotes the uterine contraction, then the placental delivery will be produced in a short time. Thus, this technique could decrease the hemorrhage postpartum.