A cohort of 200 consecutive women attending an antenatal clinic were followed throughout pregnancy with repeated measurements of back pain and possible determinants by questionnaires and physical examinations. Seventy-six percent reported back pain at some time during pregnancy. Sixty-one percent reported onset during the present pregnancy. Back pain during pregnancy is a common complaint. The 30% with the highest pain score reported great difficulties with normal activities. The back pain started early in pregnancy and increased over time. Young women had more pain than older women. Back pain starting during pregnancy may be a special entity and may have another origin than back pain not related to pregnancy.
Kristiansson P, Svardsudd K, von Schoultz B. Spine 1996 (Mar 15); 21 (6): 702-709