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What is the SI joint?

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Its full name is the sacroiliac joint. There are two of them in your lower back, and they sit on each side of your spine. Their main job is to carry the weight of your upper body when you stand or walk and shift that load to your legs.

SOURCES:

Laslett, M. , March 2008. Journal of Manual Manipulative Therapy

Cohen, S. , January 2013. Expert Review of Neurotherapeutics

UCLA Spine Center: "Sacroilac Joint Disease."

Reviewed by Tyler Wheeler on June 21, 2017

SOURCES:

Laslett, M. , March 2008. Journal of Manual Manipulative Therapy

Cohen, S. , January 2013. Expert Review of Neurotherapeutics

UCLA Spine Center: "Sacroilac Joint Disease."

Reviewed by Tyler Wheeler on June 21, 2017

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What does the pain from your SI joint feel like?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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