Many expecting mothers are well aware of the toll pregnancy has on their lower backs. The rapid weight gain and resulting postural changes often wreaks havoc on structures of the low back resulting in one of the most common symptoms of pregnancy, lower back pain (LBP). Like many sources of LBP, chiropractic care has been demonstrated to be an effective treatment, even for expecting mothers. In a recent review of published research evaluating chiropractic care, including spinal manipulation, for pregnancy-related LBP, researchers found that all studies reported positive results for chiropractic care of LBP during pregnancy. While there aren't a large number of studies to draw from and more elaborate studies are needed, those currently conducted have shown chiropractic care to be beneficial and safe for pregnancy-related LBP.
Source: JMPT. Volume 31, Issue 6, Pages 447-454 (July 2008)