Skip to content

Hallux varus is a condition where the big toe (hallux) drifts inwards towards the midline of the body (towards the other foot), instead of pointing straight ahead. This happens at the big toe joint, called the first metatarsophalangeal (MTP) joint. Hallux varus is essentially the opposite direction of a bunion (hallux valgus), where the big toe drifts outwards towards the second toe.

Hallux varus can range from a mild change in toe position that is mainly annoying in shoes, through to a more severe deformity that affects walking, balance, and push-off. Some people describe the big toe as “pulling in”, “crossing under”, or feeling as if it is being dragged medially when they walk. It can also cause pressure points, rubbing, and pain around the big toe joint.

In adults, the most common cause of hallux varus is overcorrection after bunion surgery. This is called iatrogenic hallux varus. It can appear immediately after surgery or develop gradually in the months following an operation as soft tissues tighten and the joint settles. This matters because it changes management priorities, including early post-operative monitoring and timely referral when a toe starts drifting too far medially.

Hallux varus can also be congenital (present from birth), post-traumatic (after injury), associated with inflammatory arthritis (such as rheumatoid arthritis), or occur in rare idiopathic patterns. Congenital hallux varus is very rare.

Physiotherapy for hallux varus is most effective when the deformity is flexible (meaning the toe can still be guided towards a straighter position). In flexible cases, a physiotherapist can reduce pain, improve big toe and foot function, improve walking mechanics, and help prevent the deformity from worsening by addressing soft tissue imbalance and loading patterns. Physiotherapy also plays a key role after bunion surgery by identifying early drift, improving joint mobility, guiding safe strengthening, and coordinating referrals if the deformity is progressing.

If hallux varus becomes rigid (stiff and fixed), conservative care may still help with symptom control, footwear tolerance and skin protection, but surgical opinion is often considered when pain and function remain significantly affected. A physiotherapist can help you understand what is realistic, and can support both pre-operative preparation and post-operative rehabilitation.

Key Facts

  • Hallux varus is characterised by medial deviation of the hallux at the first MTP joint and occurs most often after bunion surgery. 🔗
  • Incidence figures after hallux valgus surgery are commonly in the 2% to 13% range. 🔗
  • Hallux varus is well tolerated in mild cases, but capable of causing difficulty walking and shoe-fitting problems when more severe.

Causes

Hallux varus occurs when forces around the big toe joint pull the toe inward and keep it there. The big toe joint is controlled by a combination of bone alignment, ligaments and joint capsule, and tendons and muscles that balance the toe in the middle of its movement pathway.

Post-surgical (iatrogenic) hallux varus is the most common adult pattern. It usually happens after bunion correction when the toe is corrected too far, or when the inside (medial) soft tissues become too tight relative to the outside (lateral) stabilisers. It can also occur when the bony correction or sesamoid position shifts the mechanical pull of the toe tendons. Reviews describe post-operative hallux varus as a recognised complication of hallux valgus surgery with reported incidence commonly in the single digits but ranging in published series.

Post-traumatic hallux varus can happen after injury to the forefoot, including damage to the first MTP joint capsule, sesamoid complex, or tendon attachments. It may occur with a forceful twisting injury or after fractures that change joint alignment.

Inflammatory or arthritic causes can contribute. Inflammatory arthritis can change ligament and tendon balance and alter joint integrity over time, increasing the risk of deformities in multiple directions. Some people also develop hallux varus in the setting of other foot deformities, or due to generalised ligament laxity.

Congenital hallux varus is rare. In this group, the toe may sit in varus from infancy and may be associated with other anatomical differences. Radiology references describe congenital hallux varus as very rare, with surgery being the most common overall cause of hallux varus deformity.

From a physiotherapy perspective, the key issue is whether the deformity is flexible (correctable with gentle guidance) or rigid (fixed). Flexible hallux varus often responds better to conservative strategies such as taping, splinting, footwear modification, and targeted strengthening. Rigid hallux varus may require more emphasis on symptom management and referral for surgical opinion if function and pain are significantly impacted.

How Is It Diagnosed?

Hallux varus is primarily diagnosed through a clinical assessment. A physiotherapist, GP, podiatrist, or orthopaedic surgeon will look at the toe alignment while standing and walking, assess whether the deformity is flexible or rigid, and identify where your pain is coming from (joint irritation, skin pressure, tendon overload, or transfer loading to other toes).

A physiotherapist will also assess how your foot functions in gait. Hallux varus can reduce effective push-off through the first ray, which may lead to compensation through the lateral forefoot, ankle, or even the knee and hip. Your physio may test big toe range of motion, first MTP joint stability, intrinsic foot strength, calf strength, balance, and overall lower-limb control.

In post-operative presentations, timing matters. A toe that is drifting medially early after bunion surgery may need urgent communication with the surgeon because early soft tissue management and splinting can be more effective when started promptly. A physiotherapist can help identify concerning progression and coordinate referrals.

Imaging is often used when surgical planning is being considered, when there is significant pain, or when there is concern for arthritis, subluxation, or bony contributors. Weight-bearing imaging is especially useful because toe position changes under load.

Physiotherapy Management

Physiotherapy for hallux varus aims to reduce pain, improve shoe comfort, restore better big toe function during walking, and prevent progression where possible. Physiotherapy is most effective for flexible hallux varus, including early post-operative drift after bunion surgery and milder deformities that are still correctable.

Your physiotherapist will first identify what is driving symptoms. For some people it is mainly shoe pressure and skin irritation. For others it is joint pain and altered push-off mechanics. In post-operative hallux varus, physiotherapy focuses on safe early movement, swelling control, protection of healing tissues, and timely splinting or taping strategies, while closely communicating with the surgical team when progression is suspected.

Rehabilitation targets both the toe and the entire lower limb. Hallux varus changes how load travels through the forefoot and can lead to compensations through the lateral foot, ankle, calf, and hip. A good rehab plan restores first ray participation in gait, improves intrinsic foot strength, improves calf and ankle capacity, and builds confidence for return to walking, work, and sport.

Exercise

Hallux varus physiotherapy exercises should be chosen based on whether the toe is flexible and on your pain behaviour. Exercises usually focus on three goals: improving big toe joint mobility (where safe), improving strength and control of the intrinsic foot muscles, and retraining functional push-off mechanics.

Toe and first MTP mobility: If the first MTP joint is stiff or protective, your physiotherapist may prescribe gentle mobility drills. These can include graded toe flexion and extension movements within a comfortable range and controlled loading drills that encourage the toe to sit in a more neutral line. In post-operative cases, mobility must follow the surgeon’s protocol, and aggressive stretching may be inappropriate early.

Intrinsic foot strengthening: Weakness in the small stabilisers inside the foot can allow the big toe and first ray to drift into poor positions during walking. Exercises often include arch control drills (such as short-foot variations), toe control exercises that avoid clawing, and progressive big toe loading in standing. Technique matters. Many people compensate by gripping with long toe flexors, which can worsen forefoot discomfort and reduce control.

Functional strengthening and gait drills: Hallux varus often reduces effective propulsion through the big toe. Physiotherapists commonly progress strengthening into calf raises, step-through drills, and controlled push-off tasks that retrain the first ray to share load appropriately. For active people, rehab can progress into hopping and return-to-run preparation, but only once toe position, pain, and control are stable.

In flexible hallux varus, exercises are often paired with taping or a toe spacer/splint so you practise movement with the toe guided towards a more functional line. This combination can be more effective than either approach alone.

Activity Modification

Activity modification is about keeping you walking and active while reducing the things that repeatedly irritate the joint or push the toe further into varus. For many people, the biggest win is footwear management: choosing shoes with a wider toe box and an upper that does not rub, and avoiding narrow dress shoes that force the forefoot into a fixed position.

If symptoms flare with long walks, hills, or stairs, your physiotherapist may temporarily reduce these loads while you build foot and calf capacity. Rather than stopping all activity, your physio can help you maintain fitness with lower-irritability options (cycling, swimming, flat walking routes), then reintroduce higher forefoot loads gradually.

In post-operative hallux varus, activity modification also includes respecting surgical weight-bearing and footwear restrictions and avoiding early loading patterns that increase medial drift. Your physiotherapist can help you progress safely while monitoring the toe position.

Manual Therapy

Manual therapy may be used when joint stiffness, soft tissue guarding, or reduced first MTP mobility is contributing to pain and poor push-off. This may include gentle mobilisation of the first MTP joint, soft tissue techniques to the plantar fascia and intrinsic muscles, and techniques to improve midfoot and ankle mobility if these are driving compensations.

Manual therapy is not a stand-alone fix for hallux varus. It is most useful when it leads to a clear functional change, such as more comfortable toe motion, improved walking, or better tolerance of strengthening exercises. In post-operative hallux varus, manual therapy must be matched to healing stage and the surgeon’s protocol.

Postural Retraining

Postural retraining is not a primary treatment for hallux varus, but movement retraining is highly relevant. Physiotherapists often identify gait changes such as avoiding big toe push-off, rolling to the outside of the foot, shorter stride length, and reduced confidence on uneven ground.

Retraining may involve step-through drills, controlled toe loading, and balance work that encourages the first ray to contribute safely to propulsion. This can reduce secondary pain in the lateral foot and calf that sometimes develops when the big toe is not doing its share.

Bracing & Taping

Bracing and taping are commonly used in conservative management of flexible hallux varus, especially after bunion surgery when early medial drift is noticed. Taping can guide the big toe towards a more neutral position during walking, which can reduce pain and reduce further soft tissue tightening in the varus direction.

Toe spacers, splints, or silicone sleeves can improve shoe comfort and help position the toe, particularly during higher-load days. These devices are most helpful when they are comfortable, do not create new pressure points, and are paired with strengthening and gait retraining. A physiotherapist can show you how to tape effectively for function, not just for appearance.

Heat & Ice

Ice can help during painful flare-ups, particularly when there is local irritation after walking or shoe pressure. Heat is less commonly used but may help if stiffness is a major feature and warmth improves comfortable movement before exercise.

These strategies are supportive and should sit alongside footwear management, taping or splinting (when appropriate), and a progressive strengthening program as part of hallux varus rehab.

Education

Education is crucial because hallux varus can be confronting, especially when it happens after bunion surgery. Your physiotherapist will explain:

  • What hallux varus is and why the toe is drifting medially.
  • Why flexible deformities respond better to early conservative management.
  • How to choose footwear that reduces irritation and does not force the toe further into varus.
  • How to pace walking and exercise loads so the joint does not flare repeatedly.
  • When toe position changes warrant review by your surgeon or specialist.

Education also includes realistic expectations. Physiotherapy can improve pain and function, and sometimes improves toe position in flexible cases. However, rigid deformities or joint arthritis may limit how much alignment can change without surgery. Knowing this helps you focus on achievable goals and avoid frustration.

Other

Other useful components often include:

  • Footwear and orthoses:
    Some people benefit from orthoses that improve load distribution through the forefoot, particularly if they are compensating laterally and developing transfer pain. A physiotherapist may fit an orthotic or coordinate with a podiatrist, then integrate orthotic use into a strengthening and gait retraining plan.
  • Skin and pressure-point management:
    If rubbing and callus are the main issues, padding strategies and footwear modification can be combined with physiotherapy to reduce recurrence. Referral to podiatry can help when callus care is needed.
  • Post-operative monitoring:
    In iatrogenic hallux varus, physiotherapy may involve frequent early reassessment of toe position, function, and symptoms, with timely escalation to the surgeon if the deformity is worsening.

Prognosis & Return to Activity

The prognosis for hallux varus depends mainly on the cause and whether the deformity is flexible or rigid.

Flexible hallux varus often responds well to conservative care, especially when treated early. People commonly improve shoe comfort, reduce pain, and improve walking mechanics with a program that includes taping or splinting, footwear changes, and progressive strengthening. Post-operative hallux varus that is identified early may be easier to influence because soft tissues have not fully adapted into a shortened position.

Rigid hallux varus or hallux varus associated with significant first MTP arthritis is less likely to change alignment with exercise alone. In these cases, physiotherapy remains valuable for symptom control and function, but surgical opinion is more commonly considered if pain and walking limitation are substantial.

Many mild cases are tolerated, but more severe deformities can reduce propulsion and make walking inefficient, which is one reason timely assessment is helpful.

Return to activity is usually guided by comfort in shoes, walking tolerance without flare-ups, confidence on uneven surfaces, and restoration of functional strength and balance.

When to See a Physio

  • Hallux varus develops after bunion surgery, especially if the toe position is changing over days or weeks.
  • You have increasing pain, swelling, or difficulty fitting shoes due to medial toe drift.
  • The toe feels stiff and fixed (rigid), or you suspect arthritis at the first MTP joint.
  • You are changing how you walk, developing lateral foot pain, or losing walking confidence.
  • You have recurrent blisters, callus, or skin irritation despite footwear changes.
  • You want a clear hallux varus rehab plan, including exercises, taping, footwear strategy, and return-to-activity progressions.

Frequently Asked Questions

What is hallux varus?
Hallux varus is when the big toe drifts inward (medially) at the first MTP joint. It can be flexible or rigid and may cause pain, shoe rubbing, and altered walking mechanics.

Is hallux varus the opposite of a bunion?
Yes. A bunion (hallux valgus) is where the big toe drifts outward towards the second toe. Hallux varus is where the big toe drifts inward away from the other toes.

Why does hallux varus happen after bunion surgery?
It can happen if the correction is too strong, or if there is an imbalance between the inside and outside soft tissues and tendons that control the toe. It may appear immediately or develop over the months after surgery.

Can physiotherapy fix hallux varus?
Physiotherapy is most effective when the deformity is flexible. It can reduce pain, improve function, guide taping or splinting, strengthen the foot, and improve gait. Rigid deformities are less likely to change position without surgery, but physiotherapy can still help symptoms and walking capacity.

What are the best hallux varus physiotherapy exercises?
Most programs include intrinsic foot strengthening, controlled big toe loading, calf strengthening, and gait retraining. Exercises are often paired with taping or a toe spacer so the toe is guided into a more functional line during movement.

Do I need an X-ray or MRI?
A weight-bearing X-ray is commonly used to assess alignment and joint integrity, especially if symptoms are significant or surgical planning is being considered. MRI is usually reserved for unusual or persistent pain or suspected soft tissue injury.

When is surgery considered for hallux varus?
Surgery may be considered when hallux varus is rigid, progressing, or causing significant pain and functional limitation despite conservative management. The approach depends on whether the joint is flexible, whether arthritis is present, and what caused the deformity.