One-Sided Lower Back Pain? It Might Be Your SI Joint! Causes, Habits, and Relief
Have you ever felt pain on just one side of your lower back or hip?
Maybe sitting for a long time makes it ache, or walking up the stairs brings a sharp discomfort.
If this sounds familiar, you might be dealing with something called sacroiliac joint pain—often shortened to SI joint pain.
What Is the Sacroiliac Joint?
The sacroiliac (SI) joints connect your sacrum (the base of your spine) to your pelvic bones.
They act as strong, stabilizing bridges between your upper and lower body, transferring force every time you move, walk, or bend.
Because these joints carry so much responsibility, even small imbalances in the pelvis can put stress on them—leading to discomfort or pain.
The “Does It Move?” Debate
Among professionals, there’s an ongoing discussion about whether the SI joint can actually “move” or “shift.”
Some say it’s firmly held in place by strong ligaments and doesn’t move enough to “go out of alignment.”
Others observe that even slight shifts or rotations can occur—and these can cause pain.
How the Pain Happens
No matter which side of the debate you’re on, one thing is clear:
When the pelvis tilts forward or backward, the ligaments around the joint can become strained, creating pain.
Because these ligaments contain nerve fibers specialized in sensing pain, they can become highly sensitive when inflammation or irritation develops—making SI joint pain easy to trigger even from small imbalances.
Let’s imagine the left side of your pelvis tilts forward slightly.
This small change puts extra tension on the ligaments around your SI joint.
When you bend forward—like when picking something up or leaning over—the tension increases, and that’s often when pain strikes.
Common Everyday Habits That Contribute
Many of us unknowingly build pelvic imbalances through daily routines, such as:
- Crossing the same leg while sitting
- Carrying a bag or purse on the same shoulder everyday
- Standing with weight shifted to one side
Over time, these small habits can make one side of the pelvis tilt differently from the other—adding stress to the sacroiliac joint.
Typical Symptoms of SI Joint Pain
- Pain on one side of the lower back, hip, or buttock
- Pain that can radiate down the thigh or leg
- Discomfort when standing or sitting for long periods
- Pain when first starting to walk that improves after moving
- Pain when going up or down stairs
The First Step: Know Your Pelvic Alignment
If you’re in the Albuquerque area and notice pain on one side of your lower back or hip, it might be time to have your alignment checked and receive gentle bodywork to help rebalance the area.
A more balanced pelvis means less pain, better movement, and a lighter, easier body.
At my Albuquerque studio, I focus on correcting pelvic asymmetry and helping clients understand how their body moves.
Knowing whether your pelvis tilts forward, backward, or to one side is the first step toward lasting relief.