Your sacroiliac joints or SI joints are the places where your hips meet your spine. These joints don’t have a lot of flexibility, but they do move slightly as you move your body. If SI joints become damaged or diseased, it can be painful.

Symptoms:

• Pain in the lower back
• Pain in the buttocks, hips, and pelvis
• Pain in the groin
• Increased pain when standing up from a sitting position
• Stiffness or a burning sensation in the pelvis
• Numbness
• Weakness