Diagnosis:

The sacroiliac joints are located below the lumbar spine and above the tailbone, connecting the sacrum, which is triangular bone at the bottom of the spine, to the iliac crest, also known as the pelvis. There are two sacroiliac joints that connect to either side of the pelvis, and serve to support weight from the upper body and distribute it evenly to the lower body. The ligaments of the sacroiliac joints are among the strongest in the body and as a result, the flexibility they enable is limited.

Sacroiliac joint disorder describes pain and inflammation of the sacroiliac joints, which can be a result of too much or too little motion (hypermobility and hypomobility), degeneration caused by osteoarthritis, or any condition that affects normal walking ability. Depending on the source of sacroiliac joint dysfunction, it can cause pain in slightly different locations, including the lower back, hip, buttocks, groin, and/or leg.