Why Does My Lower Back Pain Travel Down My Leg?

Why Does My Lower Back Pain Travel Down My Leg? A Physical Therapist Answers

By Nova Physical Therapy | North Hollywood, CA

Patient Question

“Why does my lower back pain travel into my buttock or down my leg, and does that mean I have sciatica?”

The Short Answer

Pain that begins around the lower back and travels into the buttock, thigh, lower leg, or foot is commonly described as sciatica.

However, “sciatica” is a broad term, and not every person with back and leg pain has the same underlying condition.

A 2026 review on spine-related leg pain emphasizes that radicular pain, radiculopathy, and referred pain are different clinical presentations that may coexist but can differ in their mechanisms, prognosis, and management. 

Symptoms may include pain, tingling, numbness, altered sensation, or weakness. A licensed physical therapist can evaluate movement, muscle performance, sensation, reflexes when appropriate, walking, functional limitations, and symptom behavior to determine whether physical therapy is appropriate and whether additional medical evaluation is indicated. APTA's ChoosePT patient guidance similarly describes a PT examination for lumbar radiculopathy/sciatica as including movement, strength, sensation, reflexes, walking, balance, and detailed symptom history. 

What Is Sciatica?

The term sciatica is commonly used to describe symptoms extending from the lower back or buttock into the leg.

Patients may describe:

• Sharp or shooting pain
• Burning sensations
• Tingling
• Numbness
• Aching
• Electric-like sensations
• Leg weakness
• Symptoms extending toward the foot

But these symptoms do not automatically identify exactly which structure is responsible.

The terminology is important. A newly published 2026 review describes spine-related leg pain as an umbrella presentation that may include radiculopathy, radicular pain, and somatic referred pain. 

That means two people who both say, “I have sciatica,” may actually have different clinical presentations.

What Is Lumbar Radicular Pain?

Radicular pain generally refers to pain associated with irritation or involvement of a spinal nerve root.

The symptoms may extend from the lower back or buttock into portions of the leg.

Depending on the presentation, symptoms can sometimes change with:

• Sitting
• Standing
• Walking
• Bending
• Lifting
• Coughing or sneezing
• Different spinal positions

The location and behavior of symptoms provide useful information during an evaluation, but symptoms alone should not be used to establish a diagnosis.

Is Radiculopathy the Same as Sciatica?

Not exactly.

These terms are frequently used interchangeably in everyday conversation, but clinically they are not necessarily identical.

Radiculopathy generally involves neurological impairment associated with a nerve root and may include findings such as changes in:

• Muscle performance
• Sensation
• Reflexes

Someone may experience leg pain without demonstrating neurological deficits consistent with radiculopathy.

This distinction is one reason an appropriate clinical examination matters.

The 2026 review on spine-related leg pain specifically highlights the problem created by imprecise use of the term “sciatica” and recommends differentiating these presentations during examination. 

Does Pain Down My Leg Mean I Have a Herniated Disc?

Not necessarily.

A lumbar disc condition can contribute to nerve-related symptoms in some individuals, but radiating leg pain does not automatically establish a disc herniation.

Other clinical presentations can also produce pain in the buttock or leg.

The physical therapist therefore considers:

• Medical history
• Location of symptoms
• Symptom behavior
• Strength
• Sensation
• Reflexes when indicated
• Mobility
• Functional limitations
• Walking tolerance
• Neurological findings

If findings suggest that additional medical investigation is appropriate, referral may be indicated.

Does Sciatica Always Go All the Way to the Foot?

No.

Symptoms may occur in different locations.

Some people experience symptoms primarily around the:

• Lower back
• Buttock
• Posterior thigh
• Lateral thigh
• Lower leg
• Foot

Others may experience symptoms extending through several of these areas.

The location alone does not establish the exact cause.

Why Does Sitting Make My Leg Pain Worse?

Sitting can influence symptoms in some individuals with spine-related leg pain, while others may tolerate sitting relatively well.

APTA's ChoosePT guidance notes that symptoms may become better or worse depending on activities and positions such as walking versus sitting or lying versus standing. 

This variation is clinically useful.

A physical therapist may ask questions such as:

• Does sitting increase the symptoms?
• Does walking improve or worsen them?
• What happens when you bend forward?
• What happens when you stand?
• Does changing position alter the leg symptoms?
• How long can you sit or walk before symptoms change?

Treatment should be based on the individual's symptom behavior rather than assuming every person with “sciatica” responds to the same movements.

Should I Rest Until the Sciatica Goes Away?

Complete inactivity is generally not the goal for most uncomplicated presentations.

Current low-back-pain clinical practice guidelines emphasize active rehabilitation. For chronic low back pain with leg pain, physical therapists may use interventions including specific trunk activation, movement-control exercise, joint mobilization, and neural tissue mobilization when appropriate to the individual presentation. 

The appropriate amount and type of activity depend on the patient.

Physical therapy may help determine how to modify activities temporarily while progressively restoring tolerance for:

• Walking
• Sitting
• Bending
• Lifting
• Working
• Exercise
• Recreational activities

Should I Stretch My Sciatic Nerve?

Not automatically.

This is an important distinction.

If someone experiences leg symptoms, aggressively stretching the leg because they believe the “sciatic nerve is tight” may not necessarily be appropriate.

Clinical practice guidelines indicate that neural tissue mobilization may be used in selected patients with chronic low back pain and leg pain, but treatment selection depends on examination findings. 

A physical therapist can determine whether mobility exercises, strengthening, movement-control exercises, neural mobility techniques, or another approach is more appropriate.

Can Physical Therapy Help Sciatica and Radiating Leg Pain?

Physical therapy may be appropriate for many individuals with lower back and leg symptoms when the presentation falls within physical therapy management.

Depending on examination findings, treatment may include:

• Therapeutic exercise
• Progressive strengthening
• Trunk muscle training
• Hip and lower-extremity strengthening
• Movement-control exercises
• Mobility exercises
• Neural mobility techniques when appropriate
• Walking progression
• Functional movement training
• Activity modification
• Patient education
• Home exercise programs
• Manual therapy when clinically indicated
• Progressive return to work or recreation

The 2021 JOSPT low-back-pain clinical practice guideline supports several active interventions for low back pain and identifies specific options for patients with associated leg pain. 

Do I Need an MRI?

Not every person experiencing lower back and leg pain automatically requires imaging.

Whether imaging is appropriate depends on the complete clinical presentation.

During an evaluation, the physical therapist screens for neurological and other findings that may warrant additional medical investigation.

APTA's ChoosePT guidance notes that if the PT examination identifies concerning findings, the physical therapist may communicate with the physician or surgeon regarding the need for additional diagnostic testing such as MRI. 

The goal is not to ignore imaging. It is to use imaging when clinically appropriate rather than assuming everyone with leg pain needs an immediate scan.

Can Sciatica Get Better Without Surgery?

Many individuals with spine-related leg symptoms are initially managed conservatively, depending on the underlying presentation and absence of findings requiring urgent intervention.

Exercise-based rehabilitation, education, appropriate activity, and other conservative approaches may form part of management.

However, some presentations require medical or surgical consultation.

The decision depends on factors including:

• Neurological findings
• Symptom progression
• Functional limitations
• Medical history
• Response to conservative care
• Severity of weakness
• Other clinical findings

Physical therapy should therefore include ongoing reassessment rather than simply continuing the same treatment regardless of progress.

What Does Research Say?

The evidence increasingly supports treating back-related leg pain as a heterogeneous clinical presentation rather than one condition called sciatica.

A July 23, 2026 review in Musculoskeletal Science and Practice emphasizes differentiating radiculopathy, radicular pain, and somatic referred pain and using a structured clinical reasoning framework to guide treatment, referral, and expectations. 

The JOSPT clinical practice guideline supports exercise-based approaches for low back pain and provides specific recommendations applicable to some patients with leg pain, including movement-control exercise and selected neural tissue mobilization and manual therapy interventions. 

NICE's evidence framework for low back pain and sciatica similarly evaluates exercise and other non-invasive interventions as components of conservative management rather than treating every patient through one standardized intervention. 

The overall message is important:

The presence of pain traveling down the leg does not tell us everything we need to know. The examination determines which impairments and functional limitations should be addressed and whether referral is necessary.

What Happens During a Physical Therapy Evaluation?

At Nova Physical Therapy, an individualized evaluation for lower back and leg symptoms may include:

• Medical history review
• Detailed symptom history
• Lumbar mobility assessment
• Strength testing
• Lower-extremity muscle performance assessment
• Sensation screening when indicated
• Reflex testing when appropriate
• Neurological screening
• Functional movement assessment
• Walking assessment
• Balance assessment when relevant
• Sitting and standing tolerance
• Assessment of symptom response to movement
• Review of occupational demands
• Activity limitation assessment
• Goal setting

APTA's patient guidance similarly identifies movement, strength, sensation, reflexes, joint mobility, walking, balance, and detailed symptom history as relevant components of the physical therapy examination for lumbar radiculopathy and sciatica. 

In California, the Physical Therapy Practice Act includes physical therapy evaluation, treatment planning, instruction, exercise, and consultative services within PT practice while specifically stating that a PT license does not authorize the diagnosis of disease. It also requires referral when signs or symptoms indicate a condition requiring treatment beyond the PT's scope or when the patient is not progressing toward documented goals. 

When Should You Seek Medical Attention?

Lower back pain with leg symptoms requires more urgent medical evaluation when certain neurological or systemic symptoms are present.

Seek immediate medical attention for symptoms such as:

• New loss of bowel or bladder control
• Numbness around the saddle or genital region
• Significant or rapidly progressing leg weakness
• Major difficulty walking that is new or worsening
• Significant trauma
• Fever associated with severe back pain
• Other rapidly progressing neurological symptoms

APTA's ChoosePT guidance specifically identifies loss of bowel or bladder control as requiring immediate medical attention during evaluation of lumbar radiculopathy/sciatica. 

Sudden or progressive neurological changes should not simply be treated as routine “sciatica.”

Why Patients Choose Nova Physical Therapy

At Nova Physical Therapy, our mission is simple:

We Care.

When patients hear words such as “sciatica,” “pinched nerve,” or “herniated disc,” it is understandable to become concerned about movement.

Our approach emphasizes understanding the patient's actual functional presentation rather than creating unnecessary fear around the spine.

Our treatment philosophy emphasizes:

• Evidence-based care
• Individualized treatment plans
• Patient education
• Neurological screening when indicated
• Functional outcomes
• Progressive strengthening
• Movement optimization
• Appropriate activity progression
• Return-to-work and recreational goals
• Referral when findings require additional medical evaluation

Our goal is not simply to focus on where your symptoms hurt.

We evaluate how those symptoms affect your ability to sit, walk, sleep, bend, lift, work, exercise, drive, and participate in everyday activities.

Frequently Asked Questions

Is sciatica the same as a pinched nerve?

Not necessarily. “Sciatica” is commonly used to describe leg symptoms, but different mechanisms can produce spine-related leg pain. An examination helps differentiate the clinical presentation. 

Does sciatica mean I have a herniated disc?

No. A disc-related condition is one possible contributor, but radiating leg pain alone does not establish a disc herniation.

Can sciatica cause numbness and tingling?

Some nerve-related presentations may include altered sensation, tingling, or numbness. These symptoms should be assessed as part of a neurological examination when appropriate.

Can sciatica cause weakness?

Neurological involvement can sometimes produce measurable weakness. New or progressive weakness deserves appropriate clinical evaluation.

Should I stretch if I have sciatica?

Not every patient requires the same stretching program. Exercise selection should be based on examination findings and symptom response.

Is walking good for sciatica?

Walking may be appropriate for many individuals, but tolerance varies. Some patients feel better walking while others experience increased symptoms. Activity should be individualized. 

Can physical therapy help without injections or surgery?

Conservative rehabilitation may be appropriate for many presentations, depending on examination findings and medical status. Patients with progressive neurological deficits or other concerning findings may require additional medical evaluation.

How long does sciatica take to improve?

Recovery varies according to the underlying presentation, symptom duration, neurological involvement, general health, activity demands, and other factors. A specific recovery time cannot be guaranteed.

Schedule an Evaluation

If lower back pain is traveling into your buttock or leg and affecting your ability to sit, walk, sleep, drive, work, exercise, or participate in everyday activities, Nova Physical Therapy can help determine whether physical therapy is appropriate.

Our licensed physical therapists provide comprehensive evaluations and individualized rehabilitation programs focused on improving movement, physical capacity, and function.

Contact Nova Physical Therapy today to schedule your comprehensive physical therapy evaluation.

Disclaimer

The information provided in this article is intended for educational and informational purposes only and should not be considered medical advice, diagnosis, or treatment. Reading this article does not establish a physical therapist-patient relationship with Nova Physical Therapy or any of its providers.

“Sciatica,” lower back pain, radiating leg pain, numbness, tingling, and weakness can have multiple causes. The presence or location of symptoms does not establish a specific diagnosis.

Treatment and activity recommendations should be individualized based on a licensed physical therapist's evaluation, clinical judgment, medical history, patient presentation, current evidence, applicable California laws and regulations, and appropriate collaboration with other healthcare professionals.

California's Physical Therapy Practice Act includes physical therapy evaluation and treatment planning within the profession's scope while specifying that a physical therapist's license does not authorize diagnosis of disease. Physical therapists must refer when findings indicate treatment beyond the PT scope or when appropriate progress is not occurring. 

If you experience new bowel or bladder dysfunction, saddle-region numbness, significant or rapidly progressive weakness, severe difficulty walking, significant trauma, or other concerning neurological symptoms, seek appropriate medical attention.

Individual results may vary. Nova Physical Therapy does not guarantee specific outcomes from physical therapy, exercise, manual therapy, or any healthcare intervention discussed in this article.

References

1. Ballay C, Mansfield CJ, Cook CE, Erickson M, McCormick ZL, Remis A. Spine-related leg pain: Definitions, etiology, clinical presentation, and management. Musculoskeletal Science and Practice. Published online July 23, 2026. 
2. George SZ, et al. Interventions for the Management of Acute and Chronic Low Back Pain: Revision 2021. Journal of Orthopaedic & Sports Physical Therapy. 
3. American Physical Therapy Association / ChoosePT. Physical Therapy Guide to Lumbar Radiculopathy and Sciatica.
4. National Institute for Health and Care Excellence. Low Back Pain and Sciatica: Evidence and Clinical Review Protocols.
5. Physical Therapy Board of California. California Laws and Regulations Related to the Practice of Physical Therapy.

Useful patient and professional resources: APTA ChoosePT guide to lumbar radiculopathy and sciatica · Physical Therapy Board of California laws and regulations · 2026 PubMed review on spine-related leg pain

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