Can Peripheral Neuropathy Cause Foot Drop?

Not Sure Where to Start?

Choose the description that sounds most like what you’re experiencing:

🚶 I keep catching my toes → Why Do I Keep Tripping? Could Peripheral Neuropathy Be the Cause?
💪 My legs or feet feel weak → Can Peripheral Neuropathy Cause Muscle Weakness?
⚖️ I’m losing my balance → Can Peripheral Neuropathy Affect My Balance?
⚠️ I’ve fallen or I’m afraid of falling → Can Peripheral Neuropathy Cause Falls?
👣 I’m worried neuropathy will affect my walking → Will Peripheral Neuropathy Eventually Keep Me From Walking?
🦶 I can’t lift the front of my foot normally → You’re in the right place. Keep reading.

What You’ll Learn

In this chapter you’ll discover:

• What foot drop actually means
• How peripheral neuropathy can contribute to foot drop
• Why foot drop isn’t always caused by peripheral neuropathy
• How the peroneal nerve and lumbar spine may be involved
• Warning signs that deserve prompt or emergency evaluation
• Why foot drop increases tripping and fall risk
• How foot drop is evaluated
• Which treatment and rehabilitation approaches may be considered
• Why early evaluation matters

Quick Answer

Yes. Certain types of peripheral neuropathy can cause weakness that contributes to foot drop.

But foot drop can also result from several other conditions.

These may involve:

• A peripheral nerve
• A nerve root in the lower back
• Muscles
• The brain or spinal cord
• Other neurological disorders

That is why a new foot drop should not automatically be labeled:

“It’s just my neuropathy.”

New or worsening foot drop deserves medical evaluation.

And if weakness develops suddenly—particularly with facial drooping, speech difficulty, arm weakness, severe dizziness, confusion, or other possible signs of stroke—seek emergency medical attention.

What Is Foot Drop?

Foot drop is not a disease by itself.

It describes difficulty lifting the front part of the foot upward.

The medical term for this movement is:

Dorsiflexion

When dorsiflexion becomes weak, the toes may not clear the ground normally during walking.

Instead of the heel landing smoothly as the leg moves forward, the toes may:

• Drag
• Catch
• Slap the ground
• Strike obstacles

That can dramatically increase the risk of tripping.

What Does Foot Drop Feel Like?

Patients may describe it in different ways.

They may say:

“My toes keep catching the carpet.”

“My foot feels like it’s dragging.”

“My shoe keeps catching the ground.”

“My foot slaps when I walk.”

“I have to lift my knee higher to clear the floor.”

“I keep stumbling over nothing.”

Sometimes the patient notices the problem.

Other times a spouse or family member notices the change in walking first.

What Is a Steppage Gait?

When the front of the foot cannot be lifted normally, the body may compensate.

A person may raise the knee higher than usual so the toes can clear the floor.

This altered walking pattern is sometimes called a:

Steppage gait

The body is essentially finding another way to get the foot through the walking cycle.

Compensation can help someone continue walking.

But it does not explain why the weakness developed.

How Can Peripheral Neuropathy Cause Foot Drop?

Some peripheral neuropathies affect primarily sensory nerves.

Others can also affect motor nerves.

Motor nerves carry signals from the nervous system to muscles.

If the nerves controlling the muscles that lift the foot become significantly impaired, dorsiflexion may weaken.

That can contribute to foot drop.

Patients may have both:

• Sensory loss
• Motor weakness

That combination can be particularly challenging because the patient may have trouble both feeling the floor and lifting the foot.

Why Does Motor Neuropathy Matter?

When people hear the word neuropathy, they often think only about:

• Numbness
• Tingling
• Burning

Those are primarily sensory symptoms.

But peripheral nerves can also control movement.

Motor nerve involvement may cause:

• Weakness
• Muscle fatigue
• Reduced ankle control
• Difficulty lifting the foot
• Difficulty standing on the heels
• Muscle wasting in more advanced cases

Weakness changes the clinical picture.

It deserves careful attention.

Foot Drop Can Come From the Peroneal Nerve

One important cause of foot drop involves the common peroneal nerve, also called the common fibular nerve.

This nerve travels around the outside of the knee near the head of the fibula.

Because it passes through a relatively exposed area, it can be vulnerable to compression or injury.

Possible contributors can include:

• Prolonged pressure near the outside of the knee
• Certain leg positions
• Injury
• Surgery
• Significant weight loss
• Other forms of nerve compression

A peroneal nerve problem may cause:

• Foot drop
• Weak ankle movement
• Numbness or altered sensation over portions of the lower leg or top of the foot

This is different from a generalized length-dependent peripheral neuropathy, although the two can sometimes coexist.

Could Crossing My Legs Cause a Nerve Problem?

Prolonged pressure near the peroneal nerve can sometimes contribute to nerve compression.

That doesn’t mean crossing your legs briefly will automatically cause foot drop.

But in susceptible individuals, repeated or prolonged compression around the outside of the knee may become relevant.

This is another example of why the pattern and history matter.

Can the Lower Back Cause Foot Drop?

Yes.

Nerves that ultimately control the muscles of the foot begin higher in the nervous system.

A lumbar nerve root problem can sometimes cause weakness affecting dorsiflexion.

Possible causes include:

• Disc herniation
• Spinal stenosis
• Other forms of nerve-root compression

A patient may also have:

• Back pain
• Leg pain
• Tingling
• Numbness
• Weakness

But back pain is not always present.

That is why foot drop deserves a neurological and musculoskeletal evaluation rather than an assumption about the cause.

Peripheral Neuropathy vs. a Pinched Nerve

This distinction is important.

Generalized peripheral neuropathy often produces symptoms in both feet in a relatively symmetrical pattern.

A focal nerve injury or lumbar nerve-root problem may be more likely to produce:

• One-sided weakness
• A specific sensory pattern
• More localized symptoms
• Associated back or leg pain

These are tendencies—not absolute rules.

Real patients do not always read the textbook.

Sometimes multiple conditions are present at the same time.

Can Foot Drop Happen in Both Feet?

Yes.

Bilateral foot drop can occur, particularly with certain generalized neurological or neuromuscular conditions.

But bilateral weakness deserves careful evaluation.

The pattern, timing, progression, sensory findings, reflexes, medical history, and other neurological signs help determine where the problem may be occurring.

Why Does Foot Drop Cause Tripping?

Normal walking requires enough clearance between your toes and the ground as the leg swings forward.

Even a small reduction in clearance can matter.

Think about obstacles such as:

• Carpet edges
• Door thresholds
• Curbs
• Stairs
• Uneven sidewalks
• Grass
• Extension cords

A healthy nervous system makes constant tiny adjustments.

If the foot doesn’t lift adequately, something that used to be harmless may suddenly become a tripping hazard.

Foot Drop Can Increase Fall Risk

This is one reason foot drop deserves attention.

A person may begin:

• Catching the toes
• Stumbling
• Shortening their steps
• Avoiding uneven surfaces
• Holding onto furniture
• Becoming afraid of stairs

Sometimes the first serious consequence isn’t pain.

It’s a fall.

That is why I prefer to address changes in walking before a significant injury occurs.

Don’t Ignore a “Slapping” Foot

Some patients don’t describe weakness.

Instead, they say:

“My foot slaps the floor when I walk.”

That can occur when the muscles controlling the lowering of the foot are not functioning normally.

If you or someone in your family notices a new change in the sound or pattern of your walking, pay attention.

Changes in gait can provide important neurological clues.

Can Foot Drop Come on Gradually?

Yes.

Depending on the cause, weakness may develop:

• Suddenly
• Over days
• Over weeks
• Gradually over a longer period

The speed of onset matters.

Sudden weakness generally creates more urgency than a longstanding stable problem.

But even gradual foot drop deserves evaluation.

When Is Foot Drop an Emergency?

Foot drop itself is a sign—not a diagnosis.

Seek urgent or emergency evaluation when weakness appears suddenly or is accompanied by symptoms such as:

• Facial drooping
• Arm weakness
• Speech difficulty
• Confusion
• Sudden vision changes
• Severe dizziness
• Severe sudden headache
• New bowel or bladder dysfunction
• Numbness around the groin or saddle area
• Rapidly worsening weakness
• Severe back pain with major neurological changes

Those symptoms can indicate conditions requiring immediate medical attention.

Why Early Evaluation Matters

When a patient develops weakness, I don’t like the approach:

“Let’s just wait six months and see what happens.”

Sometimes observation is appropriate.

But first we need to understand what we’re observing.

Foot drop may result from conditions with very different treatment approaches.

A compressed peripheral nerve is not managed exactly like:

• Generalized neuropathy
• Lumbar nerve-root compression
• Stroke
• A muscle disorder
• Another neurological disease

Identifying the likely location and cause helps guide the next step.

How Is Foot Drop Evaluated?

Evaluation often begins with the history.

Important questions include:

• When did the weakness begin?
• Was it sudden or gradual?
• Is one foot affected or both?
• Are the toes catching?
• Is there numbness?
• Where is the numbness?
• Is there back pain?
• Is there leg pain?
• Have you fallen?
• Have you lost weight recently?
• Was there an injury or surgery?
• Do you have diabetes?
• Do you already have neuropathy?
• Are symptoms progressing?

The physical examination may assess:

• Ankle dorsiflexion strength
• Toe movement
• Other muscle groups
• Sensation
• Reflexes
• Gait
• Balance
• Lumbar spine
• Peripheral nerve function

What Tests May Be Used?

Depending on the suspected cause, additional testing may include:

• Nerve conduction studies
• EMG
• MRI
• Laboratory testing
• Other neurological studies

The appropriate test depends on the question being asked.

Remember our earlier Patient Success Principle:

Don’t chase a test—chase understanding.

The purpose of testing is to help determine where the weakness is coming from and why.

Can Foot Drop Improve?

Sometimes.

Recovery depends heavily on the cause.

Factors may include:

• Location of nerve injury
• Severity
• Duration
• Whether compression can be relieved
• Whether the underlying condition can be treated
• Degree of muscle weakness
• Overall health

Some patients recover substantially.

Others recover partially.

Some have persistent weakness.

No responsible clinician can promise that every foot drop will completely resolve.

But even when weakness remains, there may be ways to improve safety and function.

Can Physical Therapy Help?

Physical therapy may be valuable for selected patients.

Depending on the cause and severity, rehabilitation may focus on:

• Strength
• Range of motion
• Balance
• Gait
• Fall prevention
• Maintaining flexibility
• Learning safer movement strategies

The therapist can also help determine whether an assistive device is appropriate.

What Is an AFO?

An ankle-foot orthosis, commonly called an AFO, is a brace designed to support the ankle and foot.

For some people with foot drop, an AFO can help:

• Keep the foot in a safer position
• Improve toe clearance
• Reduce tripping
• Improve walking efficiency

There are different types of AFOs.

The right device depends on the individual’s strength, gait, joint mobility, skin condition, and overall needs.

Proper fitting matters—especially when neuropathy has reduced sensation.

Protect the Skin Under a Brace

This is particularly important for someone with neuropathy.

If sensation is reduced, a person may not feel excessive pressure or rubbing from a brace.

Regularly check the skin for:

• Redness
• Blisters
• Pressure marks
• Irritation
• Breakdown

A device intended to improve walking should not create a new foot problem.

What About a Cane or Walker?

Depending on balance and weakness, an assistive device may sometimes improve safety.

As I discussed in our article about falls:

A cane or walker is not necessarily a sign of failure.

If it helps you:

• Walk safely
• Leave the house
• Shop
• Attend church
• Travel
• Participate with family

then it may help preserve independence.

Should I Exercise a Weak Foot?

Possibly—but the cause needs to be understood.

Exercise can be valuable when muscles and nerves are capable of responding.

But simply exercising harder is not the answer to every neurological weakness.

If a nerve is severely compressed or another neurological condition is causing the weakness, that underlying problem may require specific treatment.

That is why:

Diagnosis comes before determination.

Work hard—but work on the right problem.

How We Evaluate Foot Drop at Advanced Integrated Medical

When someone comes to Advanced Integrated Medical and says:

“My foot keeps dragging,”

I take that seriously.

I want to know:

• When did it begin?
• How quickly did it develop?
• Is it getting worse?
• Is it one side or both?
• Where is the numbness?
• Is there back pain?
• Is there leg pain?
• Is there known neuropathy?
• Have there been falls?
• Has walking changed?

We may evaluate:

• Lower-extremity strength
• Ankle movement
• Sensation
• Reflexes
• Balance
• Gait
• Foot mechanics
• Lumbar function
• Areas of possible peripheral nerve involvement

If the findings suggest that neurological testing, imaging, specialist evaluation, or urgent medical care is needed, appropriate referral is important.

Foot drop is not something I want to simply cover up with a label.

I want to understand where the weakness is coming from.

Treatment Depends on the Cause

Treatment for foot drop may vary dramatically depending on why it developed.

The plan may involve:

• Treatment of an underlying medical condition
• Management of peripheral neuropathy
• Addressing nerve compression
• Spine evaluation
• Physical therapy
• Strengthening
• Balance rehabilitation
• An AFO or other brace
• A cane or walker
• Fall-prevention strategies
• Specialist referral
• Surgical evaluation in selected cases

There is no single foot-drop treatment appropriate for everyone.

About Dr. Dee

Dr. D. Scott (“Dee”) Stevens has spent nearly four decades helping patients with peripheral neuropathy, chronic pain, musculoskeletal disorders, sports injuries, and regenerative medicine.

Throughout his career, he has cared for patients from all walks of life—including professional, collegiate, and Olympic athletes, professional football players, Major League Baseball players, professional boxers, and MMA fighters.

Working with athletes teaches you to watch movement carefully.

Sometimes a very small change in how an athlete runs tells you something important.

The same is true with everyday patients.

A foot that begins to slap.

A toe that starts catching.

A knee that suddenly lifts higher.

Those seemingly small changes can be the body’s way of telling us:

“Pay attention.”

Dr. Dee’s Clinical Pearl

I don’t want patients to wait until they fall before they mention that their foot has begun dragging.

If your walking pattern changes, tell someone.

One of the simplest questions I ask is:

“Are you catching your toes more than you used to?”

That question can uncover weakness before the patient ever uses the words:

“I have foot drop.”

Dr. Dee’s Office Conversation

Patient: “Doctor, I already have neuropathy. My right foot has started dragging, so I assume that’s why.”

Dr. Dee: “Neuropathy could be contributing, but I don’t want to assume that. One new weak foot can also come from a specific peripheral nerve, the lower back, or another neurological problem. Let’s figure out where the weakness is coming from before we decide what to call it.”

Patient: “So foot drop isn’t a diagnosis?”

Dr. Dee: “Exactly. Foot drop describes what the foot is doing. Our next question is why.”

Facing One of the Biggest Fears

“I’m Afraid Foot Drop Means I’m Going to Lose the Ability to Walk.”

Not necessarily.

Foot drop varies greatly in severity and cause.

Some people improve.

Some compensate very effectively.

Some benefit from rehabilitation or bracing.

Others require treatment directed at the underlying nerve or spine problem.

The important thing is not to predict your entire future from one symptom.

Start with:

What caused it?

How severe is it?

Is it progressing?

What can be treated?

What can be strengthened?

What can make walking safer?

Patient Success Principle #19

New Weakness Deserves an Explanation

Pain can fluctuate.

Tingling can fluctuate.

Even numbness may change from day to day.

But when you notice a meaningful loss of strength, pay attention.

Don’t automatically say:

“I’m getting older.”

“It’s probably my neuropathy.”

“I’ll wait and see.”

Ask:

“Why is this muscle weaker?”

Weakness can provide important information about what the nervous system is doing.

Ask Dr. Dee

“Doctor, if I have foot drop, should I just start strengthening my ankle?”

Not necessarily as the first step.

Strengthening may eventually be appropriate, but first we should understand why the foot is weak.

If the cause is a compressed nerve, spinal nerve-root problem, generalized neuropathy, or another neurological condition, the treatment strategy may differ.

Exercise works best when it is directed at the correct problem.

Lesson I’ve Learned in Nearly 40 Years

How You Walk Can Tell Us a Story

Patients understandably focus on where they hurt.

But I also watch how they move.

How do they stand up?

How do they take the first few steps?

Does one foot slap?

Does one knee lift higher?

Do the toes clear the floor?

Do they reach for the wall?

Does one leg look weaker?

Movement can reveal things patients may not realize are happening.

After nearly four decades in practice, I’ve learned that sometimes the body tells its story before the patient knows the words to describe it.

The Hope Principle

Foot drop can be frightening because it changes something most of us take for granted:

Walking.

Suddenly every carpet edge matters.

Every curb gets your attention.

Every staircase requires more thought.

But don’t allow one weak movement to write the rest of your story.

First understand it.

Then address what can be addressed.

Protect yourself from falls.

Use rehabilitation when appropriate.

Use a brace if it helps.

Use an assistive device if it keeps you moving safely.

Hope doesn’t mean pretending the weakness isn’t there.

Hope means refusing to stop looking for the safest and most meaningful way forward.

“I believe the best healthcare decisions are made when patients understand their condition. My job isn’t simply to treat symptoms—it’s to help you understand why they’re happening and what your options are.”

— Dr. D. Scott (“Dee”) Stevens

Frequently Asked Questions

Can peripheral neuropathy cause foot drop?

Yes. Neuropathy that significantly affects motor nerves controlling ankle dorsiflexion can contribute to foot drop.

What is the most noticeable sign of foot drop?

Common signs include dragging the toes, catching the foot, a slapping sound when walking, or lifting the knee unusually high to clear the ground.

Can a pinched nerve cause foot drop?

Yes. Compression of a peripheral nerve—particularly the common peroneal nerve—or a lumbar nerve root can cause weakness that results in foot drop.

Can a back problem cause foot drop?

Yes. Lumbar nerve-root compression from conditions such as disc herniation or spinal stenosis can sometimes cause foot drop.

Is foot drop always permanent?

No. Recovery varies depending on the cause, severity, duration, and degree of nerve injury.

Can physical therapy help foot drop?

Physical therapy may help selected patients improve strength, gait, balance, flexibility, and safety. The appropriate rehabilitation plan depends on the cause.

What is an AFO?

An ankle-foot orthosis is a brace that can help support the ankle and improve toe clearance during walking.

Can foot drop cause falls?

Yes. Inadequate toe clearance can increase tripping and fall risk.

Should new foot drop be evaluated?

Yes. New or worsening foot drop deserves medical evaluation because several different neurological, nerve, and spinal conditions can cause it.

When is foot drop an emergency?

Sudden weakness accompanied by facial drooping, arm weakness, speech difficulty, confusion, severe dizziness, or other possible stroke symptoms requires emergency care. Foot drop associated with new bowel or bladder dysfunction, saddle numbness, or rapidly progressive weakness also requires urgent medical evaluation.

Key Takeaways

• Peripheral neuropathy can sometimes contribute to foot drop.
• Foot drop describes weakness in lifting the front of the foot; it is not a diagnosis by itself.
• Peroneal nerve compression and lumbar nerve-root problems can also cause foot drop.
• New weakness should not automatically be blamed on existing neuropathy.
• Toe catching and a slapping foot may be early clues.
• Foot drop can increase tripping and fall risk.
• Evaluation may include strength, sensation, reflexes, gait, EMG/nerve conduction testing, imaging, or other studies depending on the situation.
• Physical therapy, bracing, and assistive devices may help selected patients.
• Treatment depends on the underlying cause.
• New weakness deserves an explanation.

Why Patients Choose Advanced Integrated Medical

At Advanced Integrated Medical, we believe the words:

“My foot is dragging”

should lead to questions.

Not assumptions.

We want to understand:

When did it begin?

Is it getting worse?

Which muscles are weak?

Is sensation changing?

Could a peripheral nerve be involved?

Could the lower back be involved?

Is this part of a generalized neuropathy?

Does another specialist need to be involved?

Our goal is not simply to give the symptom a name.

Our goal is to help determine the appropriate next step.

Continue Exploring the Learning Center

You may also want to read:

• Can Peripheral Neuropathy Cause Muscle Weakness?
• Why Do I Keep Tripping? Could Peripheral Neuropathy Be the Cause?
• Can Peripheral Neuropathy Cause Falls?
• Can Peripheral Neuropathy Affect My Balance?
• Can a Pinched Nerve Cause Symptoms That Feel Like Peripheral Neuropathy?
• Will Peripheral Neuropathy Eventually Keep Me From Walking?
• What Tests Are Used to Diagnose Peripheral Neuropathy?
• How Do I Know If My Peripheral Neuropathy Is Getting Better?
• I’ve Been Diagnosed With Peripheral Neuropathy—What Should I Do Next?

Medical Disclaimer

This article is intended for educational purposes only and is not a substitute for individualized medical diagnosis or treatment.

Foot drop can result from peripheral nerve injury, nerve-root compression, generalized neuropathy, muscular disorders, brain or spinal cord conditions, and other causes. New or progressive foot drop should be evaluated by an appropriate healthcare professional.

Seek urgent medical attention for rapidly progressive weakness, new bowel or bladder dysfunction, saddle numbness, or other major neurological changes. Sudden foot or leg weakness accompanied by facial drooping, arm weakness, speech difficulty, confusion, severe dizziness, vision changes, or other possible signs of stroke requires emergency medical attention.

Ready to Learn More?

If your toes have started catching, your foot is dragging, or your walking pattern has changed, don’t simply assume:

“That’s just my neuropathy.”

Ask:

When did this begin?

Where is the weakness coming from?

Is a peripheral nerve involved?

Could the lower back be involved?

Is it progressing?

What can make walking safer?

And what is my next best step?

At Advanced Integrated Medical, we believe new weakness deserves more than a label.

It deserves an explanation.

Because understanding why your foot is dropping may help determine what should happen next.

And the sooner you understand the problem, the sooner you can begin protecting your ability to keep moving forward.