What Is Foot Drop?

What Is Foot Drop?

Foot drop is difficulty lifting the front part of the foot and toes.

During a normal walking cycle, the muscles at the front of the lower leg lift the foot as the leg swings forwards. This movement is called dorsiflexion.

When these muscles are weak or cannot receive the correct nerve signals, the forefoot may remain pointed downwards. The toes can then drag or catch on the floor.

Foot drop may:

• Affect one foot or both feet
• Develop suddenly or gradually
• Be temporary or permanent
• Result from nerve, muscle, brain or spinal-cord conditions
• Affect walking speed and confidence
• Increase the likelihood of stumbling and falling

The NHS notes that foot drop usually affects one foot, although the pattern depends on its underlying cause.

Is Foot Drop A Medical Condition?

Foot drop is usually described as a symptom, not a diagnosis by itself.

It identifies a movement problem—the inability or reduced ability to lift the foot—but does not explain why that problem has developed.

Possible underlying causes include:

• Injury or compression of the common peroneal nerve
• A slipped disc affecting a spinal nerve
• Peripheral neuropathy
• Stroke
• Multiple sclerosis
• Cerebral palsy
• Parkinson’s disease
• Muscular dystrophy
• Spinal muscular atrophy
• Motor neurone disease
• Charcot-Marie-Tooth disease
• Injury to the brain or spinal cord
• Prolonged immobility
• Complications following hip or knee surgery

The NHS identifies injury to the nerve controlling the foot-lifting muscles as the most common cause. It also lists neurological, muscular and spinal causes.

Because the cause affects both treatment and brace selection, new foot drop should be professionally assessed.

Which Muscles Lift The Foot?

The muscles responsible for lifting the foot are found mainly along the front and outer side of the lower leg.

They include the:

• Tibialis anterior
• Extensor hallucis longus
• Extensor digitorum longus
• Peroneal muscles, which also help control the foot

These muscles receive nerve signals primarily through the common peroneal—or fibular—nerve and its branches.

Damage or compression affecting this nerve can prevent the muscles from producing enough movement to clear the toes during walking.

What Does Foot Drop Look Like?

The appearance varies according to the cause and severity.

Common signs include:

• Toes dragging along the ground
• The forefoot catching steps, rugs or uneven surfaces
• A high-stepping walking pattern
• Lifting the knee higher than usual
• Slapping the foot onto the floor
• Reduced control when lowering the foot
• Walking more slowly
• Looking down frequently while walking
• Increased wear or scuffing at the front of one shoe
• Difficulty walking on heels
• Greater fatigue when walking

Some people compensate effectively over short distances, meaning the problem may be more noticeable when they become tired.

What Is A High-Stepping Gait?

A high-stepping—or steppage—gait is a common compensation for foot drop.

The person lifts the affected knee and hip higher than usual so the toes can clear the ground.

This may reduce toe catching, but it can also:

• Increase the effort required to walk
• Make walking less efficient
• Affect balance
• Place additional demand on the hip
• Become more pronounced with fatigue
• Make stairs and uneven surfaces harder to manage

A brace may reduce the need for excessive lifting by helping hold or pull the foot into a more suitable position during the swing phase.

What Is Foot Slap?

Foot slap occurs when the forefoot comes down onto the floor quickly or without controlled lowering after the heel makes contact.

It may happen because the muscles that normally control the forefoot are weak.

Foot slap can be associated with:

• A noticeable sound when walking
• Reduced control after heel strike
• Uneven steps
• Increased walking effort
• Less confidence on hard surfaces

Not every person with foot drop experiences obvious foot slap, and not every slapping gait is caused by the same condition.

Does Foot Drop Cause Trips And Falls?

It can increase the risk.

If the toes do not clear the ground during the swing phase, they may catch:

• Rugs
• Steps
• Kerbs
• Door thresholds
• Uneven pavements
• Electrical cables
• Loose flooring
• Small household objects

The NHS confirms that people with foot drop have a greater risk of tripping and falling. It recommends well-fitting supportive footwear, keeping floors clear, removing loose rugs or cables and improving lighting.

An AFO may improve foot clearance, but it cannot remove every fall risk.

Can Foot Drop Affect Balance?

Yes.

Foot drop may affect balance by altering:

• Foot placement
• Ankle control
• Step length
• Walking speed
• Weight transfer
• The ability to respond to uneven ground
• Confidence during movement

Some underlying conditions may also cause weakness, numbness, spasticity or reduced coordination elsewhere in the body.

This means a person may require more than forefoot lifting alone. They may also need:

• Side-to-side ankle stability
• Knee control
• A walking aid
• Physiotherapy
• Environmental adaptations
• A more substantial custom AFO

An AFO can support the foot and ankle and may also influence movement at the knee and hip, depending on its design.

Can Foot Drop Affect Both Feet?

Yes, although one-sided foot drop is more common.

Bilateral foot drop may occur where a condition affects:

• Both peripheral nerves
• The spinal cord
• Multiple nerve roots
• Muscles on both sides
• The central nervous system
• A hereditary neurological pathway

A person with symptoms affecting both feet should not assume that two identical retail braces will automatically be appropriate.

Each side may differ in:

• Strength
• Range of movement
• Sensation
• Spasticity
• Balance
• Required support
• Skin tolerance

A neurological, physiotherapy or orthotic assessment may be required.

What Is Flaccid Foot Drop?

Flaccid foot drop usually involves weakness and reduced muscle activity without significant involuntary stiffness or spasticity.

The affected foot may feel:

• Weak
• Loose
• Difficult to lift
• Uncontrolled during swing
• Prone to slapping down

Lightweight dynamic supports such as the Boxia® are designed primarily for flaccid foot drop. The product uses an adjustable elastic strap to assist dorsiflexion and improve forefoot clearance.

What Is Spastic Foot Drop?

Spasticity is increased or involuntary muscle stiffness caused by disruption within the brain or spinal cord.

A person with spastic foot drop may experience:

• The foot pulling downwards
• The foot turning inwards
• Toe curling
• Stiffness
• Sudden muscle activity
• Reduced ankle range
• Knee-control difficulties

A lightweight elastic lifting strap may not provide enough control for significant spasticity.

A more structured AFO may be needed to:

• Hold the foot in a corrected position
• Control inversion
• Stabilise the ankle
• Influence knee movement
• Prevent the foot becoming fixed in an unsuitable position

Brace selection should therefore consider the full pattern of movement rather than the presence of toe drag alone.

Is Foot Drop Painful?

Foot drop itself may not be painful, but the underlying cause can produce pain or other symptoms.

These may include:

• Lower-back pain
• Pain travelling down the leg
• Numbness
• Tingling
• Burning sensations
• Muscle cramping
• Ankle discomfort
• Pressure caused by altered walking
• Pain following nerve injury or surgery

Pain, numbness or sensory loss may affect which brace materials and pressure levels are safe.

A person with reduced sensation may not notice rubbing or skin damage developing beneath a brace.

Can Foot Drop Begin Suddenly?

Yes.

Sudden foot drop may follow:

• Nerve compression
• Trauma
• A spinal-disc problem
• Surgery
• Stroke
• Another neurological event

A new inability to lift the foot should be medically assessed.

Call 999 where sudden weakness occurs with signs such as:

• Facial drooping
• Arm weakness
• Altered or slurred speech
• Confusion
• Sudden one-sided numbness
• Severe dizziness
• Loss of balance
• Sudden severe headache

The NHS FAST guidance advises calling 999 immediately for suspected stroke symptoms, even where the symptoms later improve.

When Can Back Pain With Foot Drop Be An Emergency?

Foot drop can occasionally occur alongside serious compression of nerves at the lower end of the spine.

Seek urgent emergency assessment where new leg or foot weakness occurs with:

• Severe or worsening back pain
• Numbness around the buttocks, genitals or inner thighs
• Difficulty starting or stopping urination
• Loss of bladder control
• Loss of bowel control
• Reduced awareness of whether the bladder is full
• New sexual dysfunction
• Weakness affecting both legs

These symptoms can be associated with cauda equina syndrome, a rare but serious spinal emergency.

Do not delay assessment while waiting to see whether a brace improves the walking problem.

Can Foot Drop Improve?

Sometimes.

Recovery depends on:

• The underlying cause
• How severely a nerve has been damaged
• How long the symptoms have been present
• Whether compression can be relieved
• General health
• Rehabilitation
• Whether muscle activity remains
• Whether the condition is progressive

The NHS states that foot drop may improve on its own or with treatment, although it can sometimes be permanent.

A brace can provide functional support while recovery is being monitored, but wearing one does not guarantee that nerve or muscle function will return.

Is Foot Drop Permanent?

It can be temporary or permanent.

Temporary foot drop may occur where:

• A nerve has been mildly compressed
• Swelling reduces
• An injury heals
• Nerve function gradually returns
• Rehabilitation improves remaining strength

Long-term foot drop may occur where:

• Nerve damage is severe
• A neurological condition is permanent or progressive
• Muscle function has been permanently lost
• Recovery after injury is incomplete
• The underlying condition cannot be reversed

Long-term management may include an AFO, physiotherapy, functional electrical stimulation, walking aids or surgery.

How Is Foot Drop Diagnosed?

A GP or specialist may assess:

• When the weakness began
• Whether it developed suddenly or gradually
• Whether one or both feet are affected
• Muscle strength
• Sensation
• Reflexes
• Ankle movement
• Walking pattern
• Back and leg symptoms
• Previous surgery or injury
• Existing neurological conditions

Further investigations may include imaging or nerve and muscle tests, depending on the suspected cause.

The NHS states that a GP will examine the leg and foot, observe walking and may arrange referral for investigations such as imaging.

How Is Foot Drop Treated?

Treatment depends on the cause and duration.

Options may include:

• Physiotherapy
• Strengthening exercises
• Stretching
• An AFO brace or splint
• A suitable shoe insert
• Functional electrical stimulation
• Treatment of the underlying nerve or spinal problem
• Surgery in selected cases
• Falls-prevention measures
• A walking aid

The NHS lists physiotherapy, braces or splints and electrical stimulation among common treatments. Surgery may be considered where there is permanent loss of movement or where a nerve can be repaired.

What Is An AFO?

AFO stands for ankle-foot orthosis.

It is a brace designed to support or control the ankle and foot.

Depending on the design, an AFO may:

• Assist forefoot lifting
• Hold the ankle in a safer position
• Improve toe clearance
• Reduce foot slap
• Stabilise the ankle
• Influence knee movement
• Improve standing balance
• Help prevent deformity

AFOs range from lightweight textile straps to rigid custom-moulded devices.

NHS guidance explains that AFOs can support the ankle and foot and influence movement at the knee and hip, making standing, balancing and walking easier.

Do All Foot-Drop Braces Work In The Same Way?

No.

Different designs provide different levels of control.

Elastic Foot-Lifting Supports

These use elastic tension to help lift the forefoot.

They may suit selected cases of flaccid foot drop where:

• Some ankle stability remains
• The foot is flexible
• Lightweight assistance is sufficient
• A low-profile support is preferred

Textile Ankle Supports

These wrap around the ankle and connect to the shoe.

They may provide:

• Adjustable dorsiflexion assistance
• Minimal bulk inside the shoe
• A softer alternative to plastic

Plastic AFOs

These normally sit behind the calf and beneath the foot.

They may provide:

• Greater ankle control
• More consistent foot positioning
• Side-to-side stability
• Control of foot slap
• Knee influence

Carbon-Fibre AFOs

These may provide:

• Lightweight structural support
• Energy return
• Dynamic assistance
• A slim design

Custom-Made AFOs

These are individually assessed and manufactured.

They may be required for:

• Significant spasticity
• Complex deformity
• Ankle instability
• Unequal requirements between the two legs
• Pressure-sensitive areas
• More precise knee and ankle control

Read the dedicated guide:

What Is A Drop Foot AFO? Understanding Foot Drop Braces

Can An AFO Prevent Every Trip Or Fall?

No.

An appropriate AFO may improve toe clearance and reduce one important cause of tripping, but falls can also result from:

• Poor balance
• Reduced sensation
• Muscle weakness elsewhere
• Dizziness
• Vision problems
• Medication
• Unsafe footwear
• Environmental hazards
• Fatigue
• Reduced reaction time

The NHS recommends combining suitable footwear and mobility support with practical changes such as removing loose rugs and cables, improving lighting and installing handrails where required.

Read:

Can AFO Braces Help Prevent Trips & Falls?

Does Footwear Matter?

Yes.

The footwear must secure both the foot and any brace being used.

Suitable footwear for many AFOs commonly includes:

• A closed toe
• Laces or adjustable straps
• A stable heel counter
• A flat or low heel
• Sufficient depth
• Enough width
• A removable liner where more space is required
• A secure fit around the foot

East Lancashire Hospitals NHS Trust recommends closed, flat and structured footwear with laces or hook-and-loop fastenings for foot-drop splints. It warns that unsuitable footwear may allow the orthosis to move and become less effective.

Read:

Best Footwear For Foot Drop

Can A Brace Be Worn In Any Shoe?

Not necessarily.

Brace compatibility depends on:

• The type of AFO
• Internal shoe depth
• Width
• Fastening style
• Heel height
• Whether the original insole can be removed
• Whether the brace connects to the laces
• Whether the heel remains secure

For conventional AFOs, NHS guidance recommends footwear that is wide and deep enough, with laces or adjustable straps. Removing the shoe’s existing liner may create additional room.

The Boxia® sits mainly outside the footwear, although its attachment system must still be compatible with a suitable secure shoe.

Should A New AFO Be Worn All Day Immediately?

Not usually.

A conventional or rigid AFO is normally introduced gradually.

One NHS orthotics service suggests beginning with 30 to 60 minutes and increasing wear over subsequent days, while following the individual instructions provided by the orthotist or physiotherapist.

During introduction, check for:

• Persistent redness
• Rubbing
• Blisters
• Pressure
• Numbness
• Increased pain
• Instability
• Changes in walking

A lightweight textile brace may follow different product instructions, but comfort and skin checks remain important.

What Skin Changes Should Be Checked?

Inspect the skin whenever the brace is removed.

Look for:

• Persistent redness
• Blisters
• Broken skin
• Bruising
• Swelling
• Rubbing around straps
• Pressure over ankle bones
• Moisture irritation
• Numbness or altered sensation

Mersey Care NHS guidance states that temporary red marks should normally disappear within approximately 30 minutes. Sores or blistering require the AFO to be stopped and reviewed.

People with diabetes, neuropathy, fragile skin or poor circulation should be particularly cautious.

Can Physiotherapy Help?

Physiotherapy may help where there is potential to:

• Strengthen remaining muscle activity
• Maintain ankle movement
• Stretch tight muscles
• Improve balance
• Practise safer walking
• Reduce compensatory movement
• Improve confidence
• Support recovery from injury or neurological illness

Exercises must be matched to the cause.

Strengthening alone cannot restore movement where the nerve supply has been permanently lost, but rehabilitation may still help maximise function and prevent secondary problems.

What Is Functional Electrical Stimulation?

Functional electrical stimulation—FES—uses electrical impulses to activate the nerves and muscles involved in lifting the foot during walking.

It may be considered for selected people with foot drop caused by a central neurological condition, such as stroke or multiple sclerosis.

NICE guidance describes FES as stimulation of peripheral nerves supplying a paralysed muscle to help restore function.

FES requires specialist assessment and is not suitable for every cause of foot drop.

Can Surgery Help?

Surgery may be considered in selected cases.

Possible procedures depend on the cause and may include:

• Relieving pressure on a nerve
• Repairing or grafting a damaged nerve
• Transferring a functioning tendon
• Stabilising or fusing the ankle and foot

The NHS states that surgery may be considered where there is permanent loss of movement, including nerve repair or fusion procedures.

A brace may still be required before or after surgery.

Can Foot Drop Be Managed At Home?

Practical measures may reduce risk while assessment and treatment are arranged.

These include:

• Wearing secure supportive footwear
• Keeping floors free from clutter
• Removing loose rugs
• Securing electrical cables
• Improving lighting
• Using handrails
• Taking extra care on stairs and kerbs
• Using a walking aid where advised
• Avoiding walking in loose slippers
• Resting when fatigue worsens toe clearance

These measures do not identify or treat the underlying cause, so new foot drop still requires medical assessment.

Why Choose The Boxia® Drop Foot AFO?

The Boxia® Drop Foot AFO is a lightweight dynamic support intended for flaccid foot drop.

Its features include:

• Adjustable dorsiflexion assistance
• An elastic lifting strap
• Assistance during the swing phase
• Minimal bulk inside the shoe
• A cuff worn above the ankle
• Breathable perforated material
• Gel-padded sections
• Black and beige colour options
• Multiple sizes
• Adaptability for left or right use
• A low-profile design beneath clothing

The adjustable strap helps lift the forefoot and improve clearance during walking. The product contains latex.

Who May Find The Boxia® Suitable?

It may be considered where:

• The foot drop is flaccid
• Dorsiflexion assistance is required
• The ankle retains sufficient stability
• The foot remains flexible
• A lightweight external support is preferred
• A suitable secure shoe can be worn
• Adjustable lifting tension is useful
• The user can fit and monitor the device safely

Who May Need A Different AFO?

A more structured or professionally prescribed AFO may be needed where there is:

• Significant spasticity
• Strong inward turning of the foot
• Severe ankle instability
• A fixed deformity
• Significant knee-control problems
• Very limited sensation
• Fragile or damaged skin
• Complex bilateral symptoms
• Difficulty fitting the brace correctly
• Insufficient control from an elastic support
• A known latex allergy

A brace should be selected according to the person’s movement pattern, not solely from the product’s appearance.

How Do You Know Whether A Brace Is Helping?

Potential signs include:

• Improved toe clearance
• Fewer episodes of catching the foot
• Less need to lift the knee excessively
• Reduced foot slap
• Greater walking confidence
• A more consistent step
• Improved ability to manage ordinary distances
• Less concentration required to clear the foot

The brace should not create:

• New pain
• Increased instability
• Numbness
• Persistent skin marks
• Excessive pressure
• A feeling that the knee is being pushed unsafely
• More difficulty walking

When Should You Stop Using A Brace?

Remove the brace and seek advice if:

• Pain develops
• Numbness or tingling increases
• The skin blisters or breaks
• Redness persists
• Swelling develops
• Walking becomes less stable
• The foot turns excessively
• The device repeatedly slips
• The support is damaged
• The brace no longer provides adequate clearance

Do not independently heat, cut or substantially alter a prescribed AFO. NHS guidance advises contacting the orthotics service rather than attempting repairs or modifications yourself.

When Should Foot Drop Be Assessed?

See a GP when:

• You cannot lift the front of the foot or toes normally
• Your toes repeatedly drag
• You have developed a high-stepping gait
• One foot has started slapping
• You are tripping more frequently
• New numbness or weakness is present
• Symptoms are worsening
• Foot drop follows surgery or injury
• Both feet are affected

The underlying cause needs to be identified before relying on long-term support.

When Is Emergency Help Required?

Call 999 for possible stroke symptoms, including sudden:

• Facial weakness
• Arm weakness
• Speech difficulty
• One-sided weakness or numbness
• Severe confusion
• Loss of balance
• Severe headache

Seek urgent emergency assessment for leg weakness accompanied by:

• New bladder or bowel dysfunction
• Numbness around the genitals or buttocks
• Severe worsening back pain
• Rapidly worsening weakness in both legs

These symptoms require medical investigation rather than brace fitting.

The Key Takeaway

Foot drop is difficulty lifting the front of the foot and toes during walking.

It may cause:

• Toe dragging
• A high-stepping gait
• Foot slap
• Reduced balance
• Increased trips and falls
• Reduced walking confidence

Foot drop is a symptom with several possible causes, so new weakness should be medically assessed.

Treatment may include physiotherapy, an AFO, functional electrical stimulation, treatment of the underlying condition or surgery.

A lightweight product such as the Boxia® may help selected people with flaccid foot drop, but more complex weakness, spasticity or instability may require a structured or custom-made AFO.