The pelvis has a small amount of movement between the base of the spine (sacrum) and the pelvis (ilium). This is called the sacroiliac joint. A large number of muscles attach to the pelvis from both the legs and torso and can influence the position that the pelvis rests in. Restrictions in these muscles can cause the pelvis to twist or shift up or down a small amount. This may be felt as pain in the thighs, hips, pelvis, lower back or mid back. It can have a marked effect on the bio-mechanics of the whole body. Trauma such as a fall or child birth may initiate symptoms, but more often there is no obvious cause and the symptoms start gradually. If you think you are having problems with an imbalance in your sacroiliac joints and pelvis then book an appointment with e-physiotherapy Edinburgh.