The sacroiliac joints, or SI joints, sit where the spine meets the pelvis. When irritated, they can create pain that feels like low back pain, hip pain, or buttock pain. In other words, the SI joint is very good at pretending to be its neighbors.
Because SI joint pain can overlap with disc, facet, hip, and nerve pain, a careful evaluation matters.
SI joint pain often sits low and off to one side near the dimples of the lower back. It may worsen with standing, stairs, rolling in bed, getting in and out of a car, or walking for longer periods.
The SI joint can become irritated after injury, pregnancy-related changes, arthritis, altered gait, prior spine surgery, or repetitive stress.
Because the SI joint is a stabilizing joint, small changes in movement can create a surprising amount of discomfort.
Evaluation is helpful when pain is persistent, one-sided, activity-limiting, or not behaving like typical muscular back pain.
A clinician may use exam maneuvers, imaging review, and sometimes diagnostic SI joint injection to help confirm the source.
Treatment may include physical therapy, stabilization exercises, anti-inflammatory approaches, targeted injections, or other options depending on the diagnosis.
The goal is to treat the actual pain source, not simply label every low-back-area symptom as “back pain.”
Pain Specialty Group evaluates SI joint pain in the context of the spine, hips, nerves, and movement pattern.
Related resources: Lower Back Pain, Sciatica, Request an Appointment.
Need help sorting out persistent pain? Pain Specialty Group can evaluate the source of your symptoms and discuss conservative, interventional, and individualized treatment options. Request an appointment.
This article is educational and is not a substitute for personal medical advice. If you have severe or rapidly worsening symptoms, seek urgent medical care.
