 Pregnancy-related low back pain is experienced by over half of all pregnant women. In the United States it is thought of as a normal constituent of pregnancy. However, in Europe low back pain associated with pregnancy is treated. In the United States pregnancy-related low back pain is thought to resolve with birth. However about 13 of women who experience pregnancy-related low back pain continue to experience back pain for one year postpartum. Those women whose low back pain persists into the postpartum period are more at risk of experiencing comorbidities such as postpartum depression. 