Acupuncture may induce labour and, therefore, should not be performed in pregnancy, unless needed for other therapeutic purposes and then only with great caution.
Just the act of needling with a certain mode of manipulation at certain acupuncture points may cause strong uterine contractions and induce abortion. However, this may have a use in pregnancy for the purpose of inducing labour or shortening its duration.
Traditionally, acupunture, and moxibustion are contraindicated for puncture points on the lower abdomen and lumbosacral region during the first trimester. After the third month, points on the upper abdomen and lumbosacral region, and points which cause strong sensations should be avoided, together with ear acupuncture points that may also induce labour.