WHAT CAUSES SACROILIAC PAIN?
Most sacroiliac joint related pain is due to one, or a combination of, the following factors: 1. Ligament injury or laxity 2. Weakness of deep-core muscles 3. Faulty alignment of the spine/pelvic girdle Ligament injury or laxity: You can injure the sacroiliac and pelvic girdle ligaments with traumatic injury, poor posture, poor control of spinal stability, improper lifting techniques, cumulative trauma, or anything else that creates excessive and/or prolonged stress to the lower back. Pregnancy will cause the sacroiliac ligaments to have increased laxity, allowing for childbirth, and can make the SI joints more susceptible to being over-stretched and painful. Weakness of deep-core stabilizing muscles: Certain deep-core muscles including the Transversus Abdominis (your deepest abdominal muscle), Mutifidus and numerous pelvic floor muscles are responsible for what is known as Force Closure of the pelvis, which creates an inner pulling together and stabilization of the joints of the pelvi