Sciatica vs Piriformis Syndrome: How to Tell the Difference

Understanding Two Common Causes of Leg Pain in Fredericton Patients

Pain that travels from the lower back or buttock down the leg is often called sciatica. It is one of the most common reasons people visit a chiropractor in Fredericton.

However, not all leg pain that follows this pattern comes from the spine. In some cases, the irritation may come from a small muscle deep in the buttock called the piriformis muscle. This condition is known as piriformis syndrome.

Although both conditions can cause similar symptoms, they develop for different reasons and may require different approaches to treatment.

Understanding the difference between true sciatica caused by a spinal nerve problem and piriformis syndrome caused by muscle irritation can help guide proper care and recovery.

What Is Sciatica?

Sciatica refers to pain caused by irritation or compression of a spinal nerve in the lower back.

The sciatic nerve is the largest nerve in the body. It begins in the lower spine and travels through the:

Buttock
Back of the thigh
Calf
Foot

When a nerve root in the lower spine becomes irritated, pain can travel along this nerve pathway. This type of nerve-related pain is called radicular pain, which simply means pain caused by irritation of a spinal nerve.

The most common cause of sciatica is a lumbar disc herniation, where a spinal disc pushes outward and presses on a nearby nerve.

What Is Piriformis Syndrome?

Piriformis syndrome occurs when the piriformis muscle irritates the sciatic nerve.

The piriformis is a small muscle located deep in the buttock. Its main role is to help rotate the hip and stabilize the pelvis during walking and movement.

The sciatic nerve travels very close to this muscle, and in some people it may even pass directly through it.

If the piriformis muscle becomes tight, inflamed, or irritated, it can press on the sciatic nerve and cause symptoms similar to sciatica. This irritation can lead to:

Buttock pain
Leg pain
Tingling or numbness down the leg

Unlike true sciatica, however, the irritation comes from the muscle rather than the spine.

Key Differences Between Sciatica and Piriformis Syndrome

Although symptoms can overlap, several differences help distinguish these two conditions. The key question is whether the nerve irritation originates in the spine or in the buttock muscles.

Location of the Problem

Sciatica is caused by nerve irritation in the lower spine, often from a disc herniation, spinal stenosis, or degenerative disc changes.

Piriformis syndrome is caused by muscle irritation in the buttock, where the piriformis muscle presses on the sciatic nerve.

Where the Pain Is Strongest

With sciatica, pain often begins in the lower back and frequently travels down the leg.

With piriformis syndrome, pain usually begins in the buttock, and back pain is often minimal or absent.

Movements That Trigger Symptoms

Sciatica pain may worsen with sitting, bending forward, or coughing and sneezing — movements that increase pressure on spinal discs and nerves.

Piriformis syndrome pain may worsen with sitting for long periods, climbing stairs, running, or direct pressure on the buttock.

Why These Conditions Are Often Confused

Sciatica and piriformis syndrome can feel very similar because both involve irritation of the sciatic nerve. Both conditions may cause leg pain, tingling, numbness, and burning sensations down the leg.

Because of this overlap, a proper assessment is important to determine the true source of nerve irritation. At Fredericton Family Chiropractic, Dr. Scott Brayall evaluates movement patterns, muscle tension, spinal mobility, and neurological symptoms to determine whether symptoms originate from the spine or surrounding muscles.

Evidence-Based Treatment for Sciatica and Piriformis Syndrome

Treatment depends on identifying the true cause of nerve irritation. Most cases improve with conservative care that restores normal movement and reduces irritation around the nerve.

Chiropractic Care and Spinal Adjustments

Chiropractic care is commonly used to treat mechanical causes of sciatica related to spinal joints and discs.

A key treatment used by chiropractors is called spinal manipulation, often referred to as a chiropractic adjustment. This is a precise, controlled movement applied to a joint in the spine designed to:

Restore normal spinal mobility
Reduce mechanical stress on irritated nerves
Improve movement of the lower back and pelvis

When a spinal joint is restricted or not moving properly, it can increase pressure on nearby nerves and discs. A chiropractic adjustment helps restore that motion, which can reduce nerve irritation and allow the body to heal more effectively.

At Fredericton Family Chiropractic, Dr. Scott Brayall uses evidence-based manual therapies tailored to each patient’s specific condition — whether the issue is spinal or muscular in origin.

Muscle Treatment and Mobility Work

If piriformis syndrome is the cause, treatment often focuses on reducing tension in the piriformis muscle. This may include:

Targeted stretching exercises for the piriformis and hip muscles
Mobility work for the hips and pelvis
Soft tissue therapy to release muscle tightness
Strengthening surrounding muscles to prevent recurrence

Reducing tension around the sciatic nerve can often relieve symptoms quickly.

Strength and Stability Training

Strengthening the core, hips, and gluteal muscles can help stabilize the pelvis and reduce stress on the lower back. Improving these movement patterns can help prevent future episodes of nerve irritation.

Movement and Activity Guidance

Many nerve-related conditions improve when people learn how to move more efficiently, reduce repetitive strain, and avoid positions that aggravate symptoms. Gradual return to normal activity is usually encouraged.

When to Seek Medical Attention

Although most cases of nerve-related leg pain improve with conservative care, certain symptoms require urgent medical evaluation. These include:

Progressive weakness in the leg
Loss of bowel or bladder control
Severe numbness in the groin area
Sudden loss of leg function

These symptoms may indicate a rare but serious condition called cauda equina syndrome, which requires immediate medical care.

Get Help for Sciatica or Piriformis Syndrome in Fredericton

If you are experiencing buttock pain, leg pain, numbness, or tingling, the first step is identifying whether your symptoms are coming from the spine or the piriformis muscle.

At Fredericton Family Chiropractic, Dr. Scott Brayall has extensive experience assessing and treating both sciatica and piriformis syndrome using safe, evidence-based chiropractic care.

You don’t have to wait for the pain to go away on its own. Early treatment can help speed recovery and reduce the risk of your pain becoming chronic.

Book an appointment or call us at (506) 472-7000 to get started.

The Bottom Line

Sciatica and piriformis syndrome can both cause pain that travels down the leg, but they develop from different sources.

Sciatica is caused by irritation of spinal nerves in the lower back, while piriformis syndrome occurs when the piriformis muscle irritates the sciatic nerve in the buttock.

Because symptoms can overlap, identifying the correct cause is important for choosing the right treatment. Most cases improve with conservative care such as chiropractic treatment, movement-based rehabilitation, and strengthening exercises.

If you are looking for a chiropractor in Fredericton, New Brunswick who can help with sciatica or piriformis syndrome, contact Fredericton Family Chiropractic to schedule your first visit.

References

Boyajian-O’Neill LA, et al. Piriformis Syndrome. Journal of the American Osteopathic Association.

Hopayian K, et al. The Clinical Features of the Piriformis Syndrome. European Spine Journal.

Hartvigsen J, Hancock MJ, Kongsted A, et al. What Low Back Pain Is and Why We Need to Pay Attention. The Lancet.

American College of Physicians Clinical Practice Guidelines for Low Back Pain.

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