The sacroiliac (SI) joints connect the base of the spine to the pelvis. When they are irritated or move poorly, you may feel pain on one side of the low back or buttock that can spread to the groin or thigh.

SI joint pain can mimic other back and hip problems, so careful assessment matters.

Practitioner assessing a patient’s pelvis

Typical symptoms

  • One-sided low back or buttock pain
  • Pain when standing up from sitting, climbing stairs or turning in bed
  • Pain that spreads into the groin or thigh
  • Stiffness first thing in the morning

How we treat it

We use clinical tests to confirm the SI joint is involved, then treat with joint mobilisation or adjustment, soft tissue therapy for the surrounding muscles and strengthening for the hips and core. We also look at what is loading the joint, such as running mechanics or lifting technique.

For runners and lifters

Single-leg loading, such as running and lunging, can aggravate SI pain. We help you adapt training and build the strength that stabilises the pelvis.

What to expect at your first visit

The first appointment is 45 minutes. See what happens at your first visit.

  • A conversation about what happened, what makes it better or worse, and what you want to get back to
  • A hands-on examination of the painful area and the joints and muscles around it
  • A clear explanation of what we find and what we recommend, including how long it may take
  • Treatment at the first visit when it is appropriate, plus exercises to take home

Clinically reviewed by Dr. Woosang (Jason) Lee, Sports & Exercise Chiropractor. Last reviewed . General information only; it is not a substitute for an individual assessment.