Bilateral blurring of the sacroiliac joint space is usually a manifestation of sacroiliac arthritis, and it is necessary to clarify which type of arthritis it is, such as sacroiliac osteoarthritis and ankylosing spondylitis.
1. sacroiliac osteoarthritis: with age, bone degeneration, etc., joint stenosis and joint osteophytes may occur. In the case of sacroiliac joint degeneration, narrowing and blurring of the joint space can be seen when the orthostatic film of sacroiliac joint is performed.
2. Ankylosing spondylitis: most cases of ankylosing spondylitis start from bilateral sacroiliac joints, which not only has inflammatory reaction, but also continues to invade the joints, so it can lead to narrowing and blurring of the sacroiliac joints, or even fusion of the joints.
When it is found that the bilateral sacroiliac joint gap is blurred, it is recommended to improve the examination under the guidance of the doctor and receive regular treatment.