Possible Symptoms & Causes of SI Joint Pain


back pain womanThe most common symptom of SI joint dysfunction is pain. Patients often experience pain in the area of the sacrum (tail bone), upper buttocks, upper thigh, or upper groin.

The pain can lead to issues with sleeping, sitting, and walking.

The pain typically worsens with standing and walking, while less severe when lying down. Swelling and arthritis in the SI joint can also cause pain and stiffness in the pelvis.

Causessacrum diagram

The cause of sacroiliac joint pain is unknown; however, it may occur with trauma or injury.

Typical causes of SI joint dysfunction include:
• Tissue loosening due to pregnancy
• Trauma due to injury or accident
• Arthritic conditions
• Previous lower back surgery