Sciatica: Causes, Symptoms, Treatment, and Getting Back to Activity

Sciatica can be frustrating.

One day you may have pain in your lower back or buttock. The next, it may travel down your leg. You might notice burning, tingling, numbness, or even weakness. Sitting may bother you. Walking may feel better—or worse. And a quick internet search can leave you wondering whether you have a slipped disc, a pinched nerve, piriformis syndrome, or something more serious.

The good news is that sciatica does not automatically mean your back is damaged or that you need to stop being active.

Sciatica is better thought of as a pattern of symptoms involving irritation or sensitivity of nerves associated with the lower back and leg. There are several potential causes, and the best treatment depends on understanding what is contributing to your symptoms.

For many people, recovery involves a combination of symptom management, appropriate treatment, maintaining activity when possible, and progressively rebuilding the strength and capacity needed for normal life.

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What Is Sciatica?

Sciatica refers to pain and other symptoms associated with irritation of the nerve roots that ultimately contribute to the sciatic nerve.

The sciatic nerve is formed from nerve roots originating in the lower spine and travels through the buttock and down the leg.

When one of these nerve roots becomes irritated, symptoms can potentially be experienced anywhere along that pathway.

That means the problem may originate around your lower back even when most of what you feel is in your buttock, thigh, calf, or foot.

Sciatica is therefore not really a single diagnosis.

It is a description of a symptom pattern.

Determining why those symptoms are occurring is an important part of deciding what to do about them.

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What Does Sciatica Feel Like?

Sciatica can feel different from person to person.

Common symptoms include:

• Pain beginning around the lower back or buttock and traveling into the leg
• Sharp or shooting pain
• Burning
• Tingling or pins and needles
• Numbness
• A sensation of tightness or pulling through the leg
• Leg or foot weakness
• Symptoms aggravated by prolonged sitting
• Symptoms aggravated by certain back or hip movements
• Difficulty walking, exercising, lifting, or sleeping comfortably

Some people have significant back pain.

Others have very little back pain and mostly experience symptoms farther down the leg.

Symptoms are also commonly more noticeable on one side.

Is Every Pain Down the Leg Sciatica?

No.

Pain traveling into the buttock or leg can come from several different structures.

For example, symptoms may sometimes be related to:

• Muscles around the hip
• Gluteal tendons
• The hamstrings
• Hip joints
• Sacroiliac-region pain
• Peripheral nerves
• Deep gluteal or piriformis-related irritation

This is one reason diagnosing yourself based solely on where the pain is located can be difficult.

Related article: Sciatica vs. Piriformis Syndrome: What’s the Difference?

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What Causes Sciatica?

There is no single cause of sciatica.

Several different conditions can irritate or place stress on the nerve roots of the lumbar spine.

Lumbar Disc Herniation

A disc herniation is one of the better-known causes of sciatica.

The discs between the vertebrae of the spine help distribute load and allow the spine to move. Changes to a disc can sometimes result in disc material interacting with or irritating a nearby nerve root.

This may contribute to:

• Leg pain
• Tingling
• Numbness
• Changes in reflexes
• Muscle weakness

But there is an important distinction:

Having a disc bulge or herniation does not automatically mean you will have pain.

Imaging studies have found disc bulges, protrusions, and other degenerative findings in many people who have no symptoms at all. These findings become increasingly common with age.

So an MRI finding should never be interpreted in isolation.

The question isn’t simply:

“Is there a disc bulge?”

A better question is:

“Does this finding make sense when we compare it with your symptoms, examination, strength, neurological function, and overall clinical picture?”

Lumbar Spinal Stenosis

Spinal stenosis refers to reduced space around structures in the spinal canal or areas where nerves exit the spine.

It is more common as we get older and can sometimes contribute to leg pain, heaviness, tingling, numbness, or weakness.

People with lumbar stenosis may notice that symptoms are worse with prolonged standing or walking and improve when sitting or bending forward.

Again, imaging alone does not determine how limited someone will be.

Two people can have similar-looking scans but very different symptoms and physical capabilities.

Age-Related Changes in the Spine

Words such as:

• Degeneration
• Arthritis
• Disc desiccation
• Disc-space narrowing
• Bone spurs

can sound alarming when you read them on an imaging report.

But many of these changes become increasingly common as we age, including among people without pain.

That doesn’t mean imaging findings are meaningless.

It means they need context.

The goal should be to understand how your symptoms, health history, examination, neurological findings, activity tolerance, and imaging—when necessary—fit together.

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Is a “Pinched Nerve” Really Pinched?

People with sciatica are frequently told that they have a pinched nerve.

That description can be useful, but it can also create the impression that a nerve is being physically crushed and must somehow be “put back into place.”

The biology is often more complicated.

Mechanical pressure can certainly contribute to nerve-root symptoms, but inflammation and chemical irritation around the nerve can also play a role.

This helps explain why symptoms can change significantly over time without someone having a procedure that physically changes the anatomy.

The nervous system is living, adaptable tissue.

And the presence of nerve-related pain does not mean that every movement producing a sensation is causing additional injury.

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Do You Need an MRI for Sciatica?

Not necessarily.

It is understandable to think that an MRI should be the first step:

Find the problem → see it on a scan → fix it.

In reality, routine imaging is generally not recommended for uncomplicated low-back pain or sciatica when the results are unlikely to change treatment. NICE recommends against routinely offering imaging in a non-specialist setting for low-back pain with or without sciatica.

One reason is that MRI scans frequently identify abnormalities that are also found in people who feel perfectly healthy.

Imaging becomes more important when there are specific concerns, such as significant or progressive neurological deficits, suspicion of serious pathology, or when the result is likely to change treatment decisions.

Related article: Do You Need an MRI for Sciatica?

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How Is Sciatica Diagnosed?

A good evaluation involves much more than simply taking an X-ray or looking at your posture.

Your provider may ask about:

• Where your symptoms begin
• Where they travel
• What makes them better or worse
• Whether you experience numbness or tingling
• Whether you have noticed weakness
• How long symptoms have been present
• Changes in your activity or training
• Previous episodes of back pain
• Your ability to sit, walk, run, lift, work, and exercise

The physical examination may include assessment of:

• Lower-back movement
• Hip movement
• Strength
• Reflexes
• Sensation
• Nerve sensitivity
• Walking
• Functional movements
• Activities that reproduce or relieve symptoms

No single test tells the entire story.

The goal is to put the pieces together.

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How Is Sciatica Treated?

There is no universal “best exercise” or treatment technique for every person with sciatica.

Treatment should depend on the individual.

At Peak Form Health Center, we generally think about treatment in two overlapping phases:

1. Help you feel better.

2. Help you get better.

Those aren’t always the same thing.

Reducing pain is valuable. It can help you sleep, move more comfortably, and start exercising again.

But if treatment stops as soon as pain decreases, you may never rebuild the physical capacity you need for work, sport, exercise, or everyday life.

A comprehensive treatment plan may include several components.

Education and Understanding the Problem

Understanding what is happening can be therapeutic in itself.

Fear often increases when people believe that:

• Their disc is “out”
• Their spine is unstable
• Bending is dangerous
• Lifting caused permanent damage
• They should never squat or deadlift again
• Pain means they are damaging their nerve

Those beliefs can lead people to progressively eliminate activity.

Instead, we want you to understand what movements are currently sensitive while recognizing that sensitivity and damage are not necessarily the same thing.

Your back is meant to move.

And your body has an impressive ability to adapt.

Staying Active

Complete rest is rarely the long-term solution.

Current guidelines emphasize helping people continue normal activities when possible and using exercise as part of the management of low-back pain and sciatica.

Early in recovery, that might simply mean:

• Short walks
• Frequent position changes
• Light exercise
• Modified gym workouts
• Breaking up prolonged sitting
• Continuing activities that don’t significantly aggravate symptoms

You don’t necessarily need to wait until you are 100% pain-free before doing anything.

Instead, activity can be adjusted to your current capacity.

Exercise and Rehabilitation

Rehabilitation for sciatica should be comprehensive and tailored to the patient and hos/her individual factors and goals.

Depending on the person, we may work on:

• Trunk strength
• Hip strength
• Squatting
• Hinges
• Carries
• Lunges
• Pushing and pulling
• Walking tolerance
• Running tolerance
• Power
• Sport-specific movements

Early exercises may be simple.

Over time, rehabilitation should begin looking increasingly like training.

If your goal is to return to lifting weights, you eventually need to lift.

If your goal is running, eventually rehabilitation needs to include running.

If your goal is playing golf, tennis, basketball, or pickleball, your rehabilitation needs to prepare your body for those demands.

We don’t just want to get you out of pain.

We want to help bridge the gap between what your body can currently tolerate and what your life requires from it.

Related article: Can You Exercise With Sciatica?

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Can Manual Therapy Help Sciatica?

Manual treatment may be one component of a broader treatment plan.

Depending on the individual, care might include:

• Joint manipulation or mobilization
• Soft-tissue treatment
• Active Release Techniques
• Other hands-on therapies

These treatments may help reduce symptoms or improve movement tolerance for some people.

But passive treatment should not be viewed as someone repeatedly “putting your spine back into alignment.”

At Peak Form, we prefer to use hands-on care to support the process of getting you moving and training again, rather than making you dependent on treatment indefinitely.

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Can You Exercise With Sciatica?

In many cases, yes.

The more useful question is:

What kind of exercise—and how much—can you currently tolerate?

A person who normally deadlifts 300 pounds may temporarily need to deadlift 135.

Someone accustomed to running five miles may need to alternate short running intervals with walking.

Another person may tolerate cycling better than running during the initial stages.

This is where modifying:

• Load
• Volume
• Range of motion
• Speed
• Exercise selection
• Frequency

can be extremely useful.

Instead of thinking in terms of:

exercise or no exercise

we often think:

How can we find an appropriate dose of exercise right now?

Related article: Can You Exercise With Sciatica?

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What About Strength Training With Sciatica?

Strength training is often something people are afraid to return to after developing sciatica.

Squats and deadlifts in particular tend to get blamed.

But these movements are not inherently dangerous to the spine.

They are physical tasks that place demands on the body—and, like other physical tasks, they can be scaled.

You might temporarily modify:

• Weight
• Repetitions
• Sets
• Range of motion
• Exercise variation
• Training frequency

Then progressively build back toward your previous level.

The goal isn’t necessarily to protect your back from load forever.

It’s to restore your ability to tolerate load.

Related article: Strength Training With Sciatica: How to Get Back to Lifting

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How Long Does Sciatica Last?

There isn’t one recovery timeline that applies to everyone.

Some episodes improve relatively quickly.

Others take considerably longer.

Factors that can influence recovery include:

• Severity of neurological symptoms
• How long symptoms have already been present
• Overall health
• Sleep
• Physical activity
• Work demands
• Training demands
• Stress
• Previous episodes
• Confidence with movement
• Ability to gradually restore activity

Sciatica related to disc herniation often has a favorable natural course, which is one reason nonsurgical care is commonly appropriate initially.

However, symptoms can persist or recur for some people, and recovery does not always occur on a perfectly predictable schedule.

Instead of focusing only on the calendar, we prefer to monitor changes in function.

Are you:

• Sleeping better?
• Walking farther?
• Sitting longer?
• Needing fewer modifications?
• Lifting more?
• Exercising more consistently?
• Experiencing fewer leg symptoms?
• Regaining strength?
• Becoming less worried about movement?

Those changes may tell us more about progress than whether you still occasionally experience symptoms.

Related article: How Long Does Sciatica Last?

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Should You Stretch the Sciatic Nerve?

This is another area where context matters.

People with sciatica frequently feel what seems like extreme tightness in the hamstring or calf.

The instinct is often to stretch it aggressively.

But sometimes that sensation of “tightness” may actually be related to increased sensitivity of neural tissue rather than a muscle simply needing to become longer.

Aggressive stretching can therefore feel great for one person and aggravate another.

Movement and mobility can absolutely be useful.

The appropriate type and dose depend on what your symptoms tolerate.

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Do You Need Perfect Posture if You Have Sciatica?

Probably not.

You may find certain positions more comfortable than others while symptoms are irritated.

It makes sense to use those positions.

But that is different from believing that there is one perfect spinal posture that must be maintained all day.

Humans are designed to move between positions.

Instead of obsessing over whether your spine is perfectly aligned, it may be more useful to:

• Change positions regularly
• Break up prolonged sitting
• Move throughout the day
• Gradually improve tolerance to positions that currently bother you

Your best posture is often your next posture.

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When Should Sciatica Be Evaluated Urgently?

Most episodes of sciatica are not medical emergencies.

However, certain symptoms require prompt medical assessment.

Seek immediate or urgent medical care if you develop symptoms such as:

• New difficulty controlling your bladder or bowels
• Numbness around the groin, genitals, or saddle region
• Severe or rapidly progressing leg weakness
• Significant neurological changes affecting both legs
• Symptoms following significant trauma
• Severe back pain associated with fever or significant systemic illness

You should also seek professional evaluation when symptoms are persistent, worsening, significantly limiting activity, or you are unsure what is causing them.

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The Goal Isn’t Just to Eliminate Pain

Pain reduction matters.

But it shouldn’t be the only measure of success.

The bigger goal is restoring capacity and confidence.

That means gradually rebuilding your ability to tolerate the things your life demands.

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Sciatica Treatment in San Diego

At Peak Form Health Center in San Diego, we take a comprehensive approach to sciatica and low-back-related leg pain.

Rather than focusing only on where it hurts, we evaluate the broader clinical picture.

That may include:

• Your symptoms and neurological findings
• Lumbar and hip movement
• Strength
• Exercise history
• Training demands
• Work demands
• Previous injuries
• Activities you want to return to

Treatment may combine hands-on care with individualized rehabilitation and progressive strength training.

Early in the process, the goal may be reducing irritation and helping you move more comfortably.

As symptoms improve, the focus shifts toward progressively increasing what your body can tolerate.

Because ultimately, we don’t just want you to feel better on the treatment table.

We want you to get back to living, training, competing, working, and doing the things that matter to you.

If you’re dealing with persistent lower-back, buttock, or leg symptoms and aren’t sure whether sciatica is the cause, a comprehensive evaluation can help determine what may be contributing to your symptoms and what your next steps should be.

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Continue Reading Our Sciatica Series

Sciatica vs. Piriformis Syndrome: What’s the Difference?
Learn why these conditions can produce similar buttock and leg symptoms and how a professional evaluation can help differentiate them.

Can You Exercise With Sciatica?
Learn how exercise can be modified instead of eliminated and how progressive loading can be used during recovery.

How Long Does Sciatica Last?
Understand why recovery timelines vary and which signs can help you determine whether you’re progressing.

Do You Need an MRI for Sciatica?
Learn when imaging may be helpful—and why an MRI isn’t always necessary.

Strength Training With Sciatica
Learn how to modify squats, deadlifts, and other exercises while progressively rebuilding your ability to train.