How does the sacroiliac joint cause pain?
The sacroiliac joint is a type of joint known as a synovial joint. This type of joint has free nerve endings that can cause chronic pain if the joint degenerates or does not move properly. The sacroiliac joint has been long known to cause pain in the lower back and buttocks. Like any other joint in the body, the sacroiliac joint can become arthritic or its support ligaments can become loose or injured. When this happens, people can feel pain in their back, especially with lifting, running or even walking. In these cases, the pain is felt in the back, sometimes similar to the pain caused by a “disc” or spinal arthritis.
