A common cause of back pain is due to dysfunction of the sacroiliac joint or as it is commonly called the SIJ.

The sacroiliac joint is located at the lower part of your back and connects the sacrum (tail bone) to one of the ilium’s (pelvic bone).

There are two sacroiliac joints – one on each side. The SIJ’s act to transfer weight from the spine to the pelvis and also allow for a small amount of movement to occur.

A lot of people call this back pain or hip pain but it is separate to these although they can occur together.