The sacroiliac joints connect the spine and each side of the pelvis. These joints bear the weight and stress of your torso. This makes them easy to injure. Injury or overuse of these joints may cause low back pain.
Stress on these joints can cause joint pain. Sacroiliac joint pain is more common in pregnant women. Certain kinds of arthritis also may cause this type of joint pain.
Home treatment may help you feel better. So can avoiding activities that stress your back. Your doctor also may recommend physical therapy. This may include doing exercises and stretches to help with pain. You may also learn to use good posture.