Sacroiliac joint pain is an important cause of chronic lower back pain. In fact, a study published in Med Devices (Auckl) has revealed that 14-22% of patients who complain of lower back pain are diagnosed with SI joint pain. This means that this condition affects approximately 10 million adults in the United States alone.
SI joint pain can be dull or sharp. The pain usually begins in the lower back, but it can radiate to the upper back, buttocks, thighs, or legs. Often, the pain can be felt on one side of the lower back.
SI joint pain is usually worse in the morning and gets better during the day. Standing up from a sitting position often triggers the pain.
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