Piriformis Syndrome: Symptoms, Causes & PT Treatment
Updated July 20261 minute read
Piriformis syndrome is deep buttock pain thought to come from the piriformis muscle irritating nearby tissue — and sometimes the sciatic nerve, which can mimic sciatica. It often flares with prolonged sitting or specific movements. It's not dangerous and usually responds to physical therapy that addresses hip and buttock strength and mobility. Because true sciatica from the back can look similar, an exam matters to sort out the cause.
What is piriformis syndrome?
The piriformis is a deep buttock muscle. When it's irritated or tight, it can cause buttock pain and occasionally affect the nearby sciatic nerve. It's a somewhat debated diagnosis and overlaps with other causes of buttock and leg pain.
Symptoms
Common features are deep buttock pain, sometimes spreading down the back of the leg, worse with prolonged sitting, climbing stairs, or specific hip movements.
What causes it / risk factors
Prolonged sitting, a sudden increase in activity, hip muscle imbalances, and prior injury contribute.
How it's diagnosed
Diagnosis is clinical and partly one of exclusion — ruling out back-related sciatica and hip joint causes through exam.
Physical therapy treatment
What a PT does. Your therapist confirms the cause, addresses hip and buttock strength and mobility, and modifies aggravating positions. Exercises & progression (overview). Hip and gluteal strengthening, mobility, and graded activity; nerve mobility work if the sciatic nerve is involved. Recovery timeline. Many cases improve over several weeks.
Treatment options compared
PT is first-line. Injections are occasionally used for stubborn cases; surgery is rare.
Red flags
Seek care for leg weakness, numbness in the groin, loss of bladder/bowel control, or buttock pain with fever or after a significant injury.
Frequently asked questions
Sources (3)
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.