Piriformis syndrome is deep buttock pain caused by the piriformis muscle irritating or compressing the nearby sciatic nerve. It often follows long hours of sitting, hill running, or a fall onto the hip. Physical therapy can reduce nerve irritation and rebuild hip control. SportsMed Physical Therapy treats piriformis syndrome at clinics across New Jersey and Connecticut.
What Is Piriformis Syndrome?
The piriformis is a flat, pear-shaped muscle running from the front of the sacrum to the top of the femur, deep beneath the gluteus maximus. It rotates and stabilizes the hip. The sciatic nerve passes directly beneath the muscle in most people, and through it in a smaller share, so tightness or swelling can irritate that nerve. The result is deep buttock pain that may radiate down the back of the thigh, mimicking sciatica from the lumbar spine. Piriformis syndrome sits within a broader group called deep gluteal syndrome and accounts for an estimated 5 to 6 percent of sciatica-type presentations. It is more common in women, drivers, cyclists and desk workers.
What Causes Piriformis Syndrome?
Most cases trace back to overload or prolonged compression rather than a single injury. When the gluteus medius and maximus are weak, the piriformis takes on more stabilizing work than it is built for. Sitting on a hard seat, a wallet or a bike saddle compresses the region directly.
Common causes and risk factors include:
- Prolonged sitting, especially driving, commuting or desk work
- Weak gluteal and deep hip rotator muscles
- Sudden increases in running mileage, hill work or stair climbing
- A direct fall or blow to the buttock
- Anatomical variation where the sciatic nerve pierces the muscle
- Pregnancy-related pelvic changes
What Are the Symptoms of Piriformis Syndrome?
The hallmark is pain in the buttock rather than the low back. Many people point to one deep, tender spot between the sacrum and hip bone.
Typical symptoms include:
- Deep aching or burning in one buttock
- Pain that worsens after 15 to 30 minutes of sitting
- Pain radiating down the back of the thigh, usually above the knee
- Pain climbing stairs, running hills or getting out of a car
- Tenderness when pressing into the deep buttock
Seek prompt medical attention if you develop numbness in the groin or saddle area, loss of bladder or bowel control, progressive leg weakness or foot drop, unexplained weight loss, or fever with back pain.
How Is Piriformis Syndrome Diagnosed?
Piriformis syndrome is a clinical diagnosis made largely by excluding other causes. Your therapist first screens the lumbar spine, sacroiliac joint and hip, since a herniated disc or hip labral problem can produce similar symptoms. Provocation tests such as FAIR, Pace and Beatty stress the piriformis and reproduce buttock pain when it is involved. Imaging does not show piriformis syndrome directly. MRI is used to rule out disc herniation, stenosis or hip pathology when symptoms are severe or worsening.
How Physical Therapy Treats Piriformis Syndrome
Treatment works best when it addresses both the irritated muscle and the reason it became overloaded. Aggressive stretching alone often backfires, because a compressed nerve does not tolerate repeated tension. SportsMed therapists calm symptoms first, then rebuild the hip strength that keeps the piriformis from overworking.
Early care includes sitting modifications, soft tissue work to the deep gluteal region, nerve gliding and pain-free mobility. The focus then shifts to gluteus medius and maximus strengthening, hip hinge patterning and core control, and finally to walking and running mechanics. Chiropractic care and acupuncture are available alongside physical therapy when pain limits participation.
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Related conditions include lumbar radiculopathy, herniated disc and muscle spasms.
How Long Does Recovery Take?
Many people feel noticeably better within two to four weeks of starting therapy, and most straightforward cases resolve in six to twelve weeks. Cases with long-standing weakness, heavy sitting or a previous fall can take three to four months. Recovery is faster when sitting is broken up every 30 minutes, strengthening happens two to three times a week, and running volume returns gradually. It slows when people rely only on stretching or jump straight back to hills and long runs.
Piriformis Syndrome Treatment Near You in New Jersey and Connecticut
SportsMed has clinics across New Jersey and Connecticut, serving Bergen, Essex, Hudson, Middlesex, Monmouth, Morris, Ocean, Passaic and Union Counties in NJ along with Fairfield and New Haven Counties in CT. Commuters and desk workers in Wayne, Clifton on Main Avenue, Clifton on Valley Road, Passaic and Paterson see us for deep buttock pain. Union County patients visit Mountainside, Union, Linden, Elizabeth and Plainfield. Runners along the shore attend Brick and Toms River, and we also treat patients in Edison. Browse every clinic location to find yours.
Frequently Asked Questions About Joint Replacements
Q: Is piriformis syndrome the same as sciatica?
A: No. Sciatica describes symptoms along the sciatic nerve, whatever the source. Piriformis syndrome is one possible source, where the muscle irritates the nerve in the buttock. Most sciatica originates in the lumbar spine, which is why a spinal screen comes first.
Q: Should I stretch my piriformis every day?
A: Gentle, pain-free mobility can help, but aggressive daily stretching often makes an irritated sciatic nerve worse. If a stretch increases tingling or leg symptoms, stop. Most patients improve faster with gluteal strengthening plus sitting changes than with stretching alone.
Q: Why does sitting make my buttock pain worse?
A: Sitting compresses the piriformis and sciatic nerve between the seat and the pelvis while shortening the muscle. Symptoms typically build after 15 to 30 minutes. Standing breaks every half hour, a softer or wedged cushion, and removing a wallet from the back pocket usually help.
Q: Can I keep running with piriformis syndrome?
A: Often yes, at reduced volume and on flatter routes, provided pain stays low during the run and settles within a day. Hills, speed work and long runs usually need a temporary pause. Your therapist sets limits and progresses them as hip strength improves.
Q: Do I need an MRI for piriformis syndrome?
A: Not usually. MRI cannot confirm piriformis syndrome, and the diagnosis is made through clinical testing. Imaging becomes appropriate with progressive weakness, numbness in the saddle region, worsening symptoms below the knee, or no response after several weeks of good rehabilitation.
Q: Is there a clinic near me, and do I need a referral?
A: We have clinics throughout Passaic, Union and Ocean Counties, including Clifton, Wayne, Passaic, Paterson, Union, Linden, Mountainside, Brick and Toms River. New Jersey patients can often begin without a physician referral, though some insurance plans require one for coverage.
Deep buttock pain that lingers rarely fixes itself, and guessing at stretches can prolong it. A SportsMed therapist will confirm whether the piriformis is the source and plan around your sitting and training.
Book an appointment at one of our NJ and CT clinics.Reviewed by the SportsMed Physical Therapy clinical team. Last updated: August 2026.