Piriformis Syndrome

Common Symptoms

• Deep, aching pain in the buttock, often worse with sitting
• Pain that can radiate down the back of the thigh, sometimes mimicking sciatica
• Tenderness deep in the buttock over the piriformis muscle
• Pain that worsens with prolonged sitting, climbing stairs, or certain hip movements

Why It Happens

The piriformis muscle can become tight, irritated, or go into spasm from prolonged sitting, overuse (particularly in runners), or a direct injury to the buttock area, and in some people the sciatic nerve's anatomical relationship to the muscle makes irritation more likely.

Why It Can Become Persistent

Because sitting — a largely unavoidable daily activity — directly loads the piriformis area, ongoing irritation can persist unless sitting habits and hip/core mechanics are specifically addressed.

Who Commonly Gets It

Piriformis syndrome is more common in runners, in people with prolonged sitting jobs, and after a direct fall or injury to the buttock.

How It Is Usually Diagnosed

Diagnosis is largely clinical, based on the pattern of pain and specific provocative tests; imaging is sometimes used to help rule out a lumbar spine cause of similar symptoms, since piriformis syndrome and a disc-related sciatica can look similar to the patient.

Traditional Treatment Options

• Stretching and physical therapy: Targeted piriformis and hip stretching, along with addressing hip and core strength, is a well-established first-line approach.
• Activity modification: Reducing prolonged sitting or aggravating activity during flare-ups.
• NSAIDs: Sometimes used for symptom control.
• Corticosteroid or botulinum toxin injection: Can provide relief for cases that don't respond to conservative care.

Why Someone Might Start Looking for Another Option

For piriformis syndrome that hasn't fully responded to stretching and physical therapy, people look for additional non-invasive options, including shockwave therapy.

Where Shockwave Therapy May Fit

The evidence here is early: a detailed single-case study found significant improvements in pain and muscle hardness that were sustained at follow-up, and a separate randomized trial comparing shockwave therapy with corticosteroid injection found the two produced comparable improvements in pain and disability. We want to be honest that this is a small evidence base overall — a single-case study design and one comparative trial — not a broad, independently replicated body of research.

How Shockwave Treatment Works for This Area

Acoustic pressure waves are applied to the piriformis muscle deep in the buttock, generally alongside stretching and hip/core strengthening.

What the Treatment Feels Like

Most patients describe a firm tapping or pressure sensation deep in the buttock; your provider will discuss what to expect.

What Happens During Your First Visit

Your visit begins with a provider evaluation focused on your history and a physical exam relevant to your complaint. If shockwave therapy is determined to be clinically appropriate, your first treatment can typically be provided the same visit. See our What to Expect page for the full walkthrough.

Who May Not Be Appropriate

• Anyone who has not yet had a medical evaluation to distinguish this from a lumbar spine cause of similar symptoms
• Significant or progressive neurological symptoms (numbness, weakness), which need their own evaluation
• Active infection, open wounds, or certain bone conditions at the treatment site
• Certain circulatory, neurological, or bleeding-related conditions, per your provider's screening

This list is not exhaustive. Your provider will screen for contraindications during your evaluation.