Sacroiliitis is an inflammation of one or both of the sacroiliac joints, which connect your lower spine and pelvis. With sacroiliitis, even the slightest movements of your spine can be extremely uncomfortable or painful for you.
Sacroiliitis can be difficult to diagnose, and it may be mistaken for other causes of low back pain, including sciatica, herniated disks and strained muscles. Sacroiliitis may be associated with a group of diseases called spondyloarthropathies, which cause inflammatory arthritis of the spine.
Treatment for sacroiliitis may involve a combination of you resting, receiving physiotherapy and taking medications.