The authors of a Cochrane Database systematic review have concluded that current evidence supports the use of acupuncture to help with pelvic and back pain during pregnancy. They looked at 26 randomised, controlled trials, across which a total of 4093 pregnant women had participated. Evidence of moderately good quality suggested that both acupuncture and exercise, tailored to the stage of pregnancy, can significantly reduce pelvic pain and lumbo-pelvic pain, compared with usual care alone. Two-thirds of women experience lower back pain during pregnancy, and a fifth experience pelvic pain.