Piriformis syndrome may be responsible for 6% of all cases of low back pain and sciatica. With nearly 40 million new cases of low back pain and sciatica reported every year, that means as many as 2.4 million people could be dealing with piriformis syndrome and not even know it.
It usually shows up in middle-aged adults. Women tend to be affected more than men, about six to one. And while the condition is treatable, it’s also frustrating. Left unaddressed, it can even become disabling.
It’s not unusual for someone to think they’ve got Sciatica. But when we take a closer look, the spine looks fine. What’s really happening is the piriformis muscle is pressing on the sciatic nerve and that pressure is what’s driving the symptoms.
The good news is, once we find the root of the problem, most people feel better fast. That’s why it’s so important to treat the muscle itself and not just mask the pain.
What Is Piriformis Syndrome and Why Does It Get Missed?
The piriformis is a small, flat, band-like muscle that sits deep within the posterior pelvis. It originates on the anterior surface of the sacrum (typically from the second to fourth sacral segments) and inserts onto the superior aspect of the greater trochanter of the femur.
Its main action is external rotation of the hip when the leg is extended and abduction of the thigh when the hip is flexed.
Piriformis syndrome occurs when the muscle mechanically compresses or irritates the sciatic nerve beneath it. This can lead to:
- Localized buttock pain
- Radiating pain down the posterior thigh
- Paresthesia (numbness or tingling)
- Occasionally motor deficits in the distribution of the sciatic nerve
The nerve branches most often affected are the peroneal (fibular) and tibial components of the sciatic nerve, though symptoms can vary depending on the exact site and degree of compression.
What makes piriformis syndrome difficult to diagnose is that it does not typically show up on standard imaging like MRI or CT. Diagnosis is clinical, based on symptom pattern, muscle palpation, and reproduction of pain with hip rotation tests (like the FAIR test).
What Causes Piriformis Syndrome?
The piriformis acts as a stabilizer of the sacroiliac joint and femoral head. When this muscle becomes irritated, it can create pressure against the sciatic nerve. Here are the main causes:
Repetitive Microtrauma
Repeated movements and fatigue from running and other demanding physical activities can irritate the muscle over time. This creates inflammation, and as the piriformis tightens, it begins to compress the sciatic nerve underneath or within it.
Sacroiliac Joint Dysfunction or Pelvic Imbalance
If the sacrum is misaligned or the pelvis rotates asymmetrically, the piriformis is forced to work harder to stabilize the hip. This can lead to hypertonicity, spasm, or muscle fatigue, setting the stage for nerve irritation.
Direct Trauma to the Gluteal Region
A fall on the buttock, blunt-force injury, or scar tissue from a previous strain can cause localized muscle inflammation or fibrosis. In some cases, trauma leads to adhesions between the piriformis and sciatic nerve, which further increases sensitivity.
Anatomical Variation
In a minority of individuals, the sciatic nerve pierces through the belly of the piriformis instead of passing beneath it. This variant increases the likelihood of nerve compression when the muscle contracts or becomes tight.
How We Treat Piriformis Syndrome at The Disc Chiropractic
Treating piriformis syndrome isn’t just about loosening a tight muscle. It’s about correcting the mechanical stress that led to the irritation in the first place. Here’s how we approach it in the clinic.
Chiropractic Adjustments
If the femur isn’t tracking properly in the hip joint, or the pelvis is rotated, the piriformis ends up working harder than it should.
Gentle and precise thrust to the hip and SI joint help bring back normal mechanics, so the muscle can relax and stop compressing the nerve.
Shockwave Therapy
For chronic or stubborn cases, we use the Intelect RPW 2 an advanced tool that sends acoustic waves deep into the tissue. This helps break up adhesions and calcified trigger points, increase blood circulation, and reset the healing process in the piriformis.
Soft Tissue Therapy
We use the Rapid Release™ Pro 3+ a high-frequency vibration device to target the piriformis and surrounding gluteal muscles. This helps reduce and release tension and restore normal tone to the tissue.
Therapeutic Exercises
Once we’ve reduced pressure on the nerve, we start retraining how you move. That includes glute activation, core stability, and restoring proper hip mechanics.
We also work on postural correction and help patients change how they sit, stand, and move throughout the day.
FAQs About Piriformis Syndrome
How Common Is Piriformis Syndrome, and Who Gets It?
Piriformis syndrome may account for 0.3% to 6% of all low back pain and sciatica cases or up to 2.4 million people a year. It mostly affects middle-aged adults, and women are more likely to be affected by six times more than men.
What Causes the Piriformis Muscle to Irritate the Sciatic Nerve?
The piriformis runs from the sacrum to the femur, with the sciatic nerve often passing beneath or through it. Tightness, inflammation, or spasm in the muscle can compress the nerve. Triggers include sitting too long, overuse, pelvic misalignment, or glute weakness.
How Is Piriformis Syndrome Different From Sciatica?
Piriformis syndrome starts in the muscle, not the spine. Sciatica from a disc usually includes low back pain and nerve root signs. Piriformis-related pain often centers in the buttock and worsens with sitting, without showing on imaging.
Can Piriformis Syndrome Be Treated Without Surgery?
Yes. Most people improve within 1 to 3 weeks when they follow a proper treatment and methods such as Shockwave therapy. Surgery is rarely needed.
What Happens to Piriformis Syndrome if I Don’t Treat It?
It can become chronic, affecting posture and how you move. Over time, this may cause issues in the SI joint, hip, or lower back. Early care makes recovery faster and helps prevent these complications.
Take the First Step Toward Relief
Still dealing with deep buttock pain that shoots down your leg? Can’t sit comfortably or climb stairs without that nerve flaring up again?
Let’s fix it. Your first visit is just $97. It includes a full consultation, movement and orthopedic testing, spinal and pelvic exam, and a clear explanation of what’s going on and how we’ll treat it.
You don’t have to live with this pain.
Book Your $97 First Visit or Call: 720-573-4910