Feb 22, 2024 · Sacroiliitis (say-kroe-il-e-I-tis) is a painful condition that affects one or both sacroiliac joints. These joints sit where the lower spine and pelvis meet. Sacroiliitis can cause pain and stiffness in the buttocks or lower back, and the pain might go down one or both legs.

Jan 28, 2025 · Sacroiliac Joint: Sacroiliac joint pain is a sharp shooting pain emanating from the pelvic & lower back area. Learn the symptoms, causes, and treatment of SI joint pain.

Aug 23, 2023 · Sacroiliitis happens when something irritates or damages one or both of your sacroiliac joints. This irritation leads to inflammation, which causes pain that you’ll usually feel in your low back and butt.

Sacroiliac joint pain is most commonly felt in the low back and buttock but can also be referred into the thigh and leg. If numbness and tingling or weakness is present, an alternative diagnosis should be considered.

The sacroiliac joints have an intricate anatomy. This article describes the structure, function, and role of the SI joints in the pelvis and lower back.

Oct 30, 2023 · The sacroiliac joint is a synovial-type articulation between the auricular surfaces of the sacrum and ilium. Even though it is classified as a synovial plane joint, the auricular surfaces of the sacroiliac joint show marked irregularities in forms of depressions and elevations.

The sacroiliac (SI) joint is located in the pelvis, linking the iliac bone (pelvis) to the sacrum (lowest part of the spine above the tailbone). See where the sacroiliac joint is located, learn what it does for your body, and how injuries, degeneration, and instability can lead to SI joint pain.

May 22, 2023 · Inflammation of the Sacroiliac joint causes pain in the lower back and buttocks, usually on one side only. Here we explain the symptoms, causes, and treatment for Sacroiliac joint pain.

Sacroiliac joint pain—also called sacroiliac joint mediated pain or dysfunction—is pain at the point where the hip bones join the base of the spine, though you may feel it elsewhere in the body.

Mar 9, 2025 · There are two sacroiliac joints in the human body, one on the left and one on the right. These joints frequently match, although they differ greatly from person to person. The articular surfaces of the sacrum and the ilium bones produce paired C-shaped or L-shaped joints called sacroiliac joints.