Pregnancy related low back pain is a global problem. In most women low back pain induced in pregnancy disappears during the first six months after delivery. However, one of five women with pain during pregnancy from both sacroiliac regions and the symphysis still experienced disabling daily back pain two years after childbirth, which corresponded to 8% of the total study population. Hence, long-lasting low back pain with onset during pregnancy has to be considered a major public health problem, with high impact on the individual, family and society. Despite this, treatment and care is directed to general pain relief methods.