A study carried out in Spain has shown that acupuncture at Qihai REN-6 can decrease the time taken for the placenta to be expelled after delivery. Seventy-six women who had experienced a normal birth were randomly assigned to receive verum acupuncture at Qihai REN-6 or sham acupuncture at a non-acupuncture point level with Qihai REN-6, but slightly to the left of the anterior midline. The management of the third stage of labour was otherwise the same in both groups. Statistically significant differences were found between the two groups, with an average time to placental expulsion of 15.2 minutes in the placebo group compared with 5.2 minutes in the acupuncture group. This has implications for maternal health since a prolonged third stage of labour is considered to be a risk factor for postpartum haemorrhage. (Influence of acupuncture on the third stage of labor: a randomized controlled trial. J Midwifery Womens Health. 2015 Mar;60(2):199-205).