SYMPTOMS

How piriformis syndrome feels.

The pattern has some telltale features:

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• Deep, aching pain in the buttock (rather than the lower back)

• Pain that radiates down the back of the thigh, sometimes to the leg

• Worse with prolonged sitting (especially on a hard surface or a wallet), climbing stairs, or hip rotation

• Tenderness deep in the buttock over the piriformis

• Often little or no actual back pain — which is a clue it's not coming from the spine

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That buttock-centered, sitting-aggravated pattern with minimal back pain is what points toward the muscle rather than the disc.

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​OVERVIEW

What piriformis syndrome is.

The piriformis is a small muscle deep in the buttock that helps rotate your hip. The sciatic nerve runs directly beneath it — and in some people, right through it. When the piriformis becomes tight, inflamed, or goes into spasm, it can compress or irritate the sciatic nerve, producing buttock pain that often radiates down the back of the leg. Because the symptoms overlap so closely with spine-related sciatica, piriformis syndrome is frequently missed or misdiagnosed — treated as a disc problem when the real source is the muscle.

THE KEY QUESTION

Is it your spine — or your piriformis?

This is the distinction that changes everything, and it's often gotten wrong. True spinal sciatica comes from an irritated nerve root in the back (a herniated disc, stenosis); piriformis syndrome comes from the muscle compressing the nerve in the buttock. They can feel nearly identical, and to complicate things, a spine MRI in an adult often shows incidental disc changes that get blamed for the pain even when they aren't the cause.

The way to know is a careful exam plus, when needed, a diagnostic injection into the piriformis — if numbing the muscle relieves your pain, you've found the source. We don't treat the MRI; we identify and treat the structure actually driving your pain.

EVALUATION

How piriformis syndrome is diagnosed.

Evaluation begins with a focused history and a physical exam that includes specific maneuvers to stretch or contract the piriformis and reproduce your pain, plus palpation deep in the buttock. Prior imaging is reviewed in the context of your symptoms — importantly, to make sure a spine problem isn't the real driver.

In many cases an image-guided (ultrasound or fluoroscopy) diagnostic injection into the piriformis is the clearest answer: meaningful relief confirms the muscle as the source and often provides therapeutic benefit at the same time.

TREATMENT

How we treat piriformis syndrome.

Most piriformis syndrome improves without surgery. Care is layered:

Conservative care first. Targeted physical therapy focused on stretching and releasing the piriformis and correcting movement patterns, activity and posture adjustments, and anti-inflammatory measures resolve many cases.

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Image-guided injection (our difference).

     When conservative care isn't enough, treating the muscle directly is far more precise than a blind injection or medication alone.

     An image-guided piriformis injection — steroid and anesthetic placed with ultrasound or fluoroscopy right into the muscle — calms the spasm and quiets the irritated sciatic nerve, and it can be repeated as part of a plan. Paired with focused stretching, it's often what finally breaks the cycle.

     The goal is to release the muscle, take the pressure off the sciatic nerve, and restore comfortable sitting and movement.

WHAT TO EXPECT

Realistic expectations.

For most patients, piriformis syndrome responds well once the muscle is correctly identified as the source. A well-placed injection combined with focused stretching often brings meaningful relief, and improvement typically builds over a few weeks as the muscle settles and the nerve calms. Because a big part of lasting relief is retraining and stretching the muscle, rehab is part of the result — not optional. We're honest about which cases need more than one step and adjust the plan with you over time.

GOOD TO KNOW

Frequently asked questions

WHAT IS THE DIFFERENCE BETWEEN PIRIFORMIS SYNDROME AND SCIATICA?​

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"Sciatica" describes leg pain from an irritated sciatic nerve; piriformis syndrome is one cause of it — the piriformis muscle in the buttock compressing the nerve — as opposed to a spine problem like a herniated disc. They feel similar, which is why a careful exam and sometimes a diagnostic injection are needed to tell them apart.

HOW DO YOU TREAT PIRIFORMIS SYNDROME?

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Most cases respond to targeted physical therapy and activity changes. When that's not enough, an image-guided injection into the piriformis calms the muscle and the irritated nerve — often paired with focused stretching to keep the pain from returning. Surgery is rarely needed.

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WHY DOES MY BUTTOCK HURT WHEN I SIT?​

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Deep buttock pain that's worse with sitting — especially on a hard surface — and radiates down the leg is a classic piriformis pattern, particularly when there's little actual back pain. A proper exam distinguishes it from SI joint and spine-related causes.​

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CAN PIRIFORMIS SYNDROME BE TREATED WITHOUT SURGERY?​

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Yes — nearly always. The combination of stretching-focused physical therapy and image-guided injections resolves the large majority of cases. Surgery is a rare last resort.

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THE NEXT STEP

Find the real source of your buttock and leg pain.

If deep buttock pain or "sciatica" hasn't responded to the usual measures, it's worth finding out whether the muscle — not your spine — is the source. A short conversation is the best place to start.