Chronic Ankle Instability Physiotherapy
Rehabilitation for an ankle that repeatedly rolls or gives way, with strength, balance and confidence-building for everyday activity and sport.
Some people continue to feel unstable after an ankle sprain, particularly on uneven ground or when changing direction. Persistent instability can involve ligament injury alongside reduced strength and balance responses. This differs from the early management of a fresh sprain. Repeated giving way, swelling or catching deserves assessment rather than assuming the ankle is simply weak; other joint or tendon problems can coexist.
This guide is general information and does not replace a clinical assessment.
When to get urgent help
After a new injury, contact NHS 111 now for severe ankle pain, a changed shape, a snap or inability to walk. A foot that is numb, cold or blue-grey after injury needs A&E or 999. A newly hot swollen joint needs urgent GP or NHS 111 advice. These symptoms need medical care before rehabilitation.
NHS: Ankle pain- Your clinic
- Newham clinic & directions
Newham Leisure Centre, 281 Prince Regent Lane, Plaistow, London E13 8SD
- Self-pay
£60 for a 30-minute physiotherapy appointment.
Prices & self-pay- Health insurance
Cover depends on your plan and chosen physiotherapist.
Insurance & cash-plan guidance
Common Symptoms
Repeated ankle rolling or a feeling that the ankle may give way
Reduced confidence on uneven ground, steps or changes of direction
Ongoing outer-ankle discomfort or swelling after activity
Difficulty with single-leg balance or returning to running and sport after a sprain
Seek Prompt Medical Advice If You Have
After a new injury, severe pain, a changed ankle shape, a snap or inability to walk: contact NHS 111 now
A foot that is numb, cold or blue-grey after injury: go to A&E or call 999
A newly hot swollen joint or feeling generally unwell: seek an urgent GP appointment or NHS 111 advice
Persistent or worsening pain, recurrent swelling or new tingling: arrange medical assessment rather than continuing impact training
If you are unsure, call NHS 111 or seek urgent medical care.
Assessment
Discuss previous sprains, rehabilitation and situations where the ankle rolls or feels unreliable
Check ankle movement, calf and ankle muscle strength and relevant ligament stability
Assess balance and walking before progressing to harder tasks when safe
Consider persistent swelling, catching or repeated injuries that may warrant medical or orthopaedic review
Treatment
Build ankle and calf strength using exercises suited to your starting ability
Practise balance and control, progressing from supported tasks towards everyday or sporting demands
Address ankle stiffness where relevant and rebuild walking, running and direction-changing in stages
Discuss activity-specific support where appropriate and arrange further assessment if instability persists despite rehabilitation
Aftercare & self-management
At your appointment, agree which exercises to do, how often to practise them and when to review your progress.
Practise balance in a safe space with support nearby rather than testing yourself where a fall is likely
Choose manageable walking surfaces while confidence returns and gradually introduce more demanding terrain
Continue the agreed strength and balance work after pain settles; comfort alone is not the same as stability
Record giving-way episodes and any swelling or catching so the plan can be reviewed meaningfully
Frequently Asked Questions
Why does my ankle keep giving way after a sprain?+
Ligament damage and changes in balance or strength can contribute. Repeated rolling is not enough to identify one cause, so an assessment also considers other problems. A new painful injury or inability to walk needs urgent advice before routine rehabilitation.
Is a brace enough to fix ankle instability?+
A brace may be useful for some activities, but it does not replace rebuilding strength and balance. Support should be chosen around your assessed needs. Persistent giving way despite an appropriate rehabilitation programme may need further medical review.
How is this different from a new ankle sprain?+
Early sprain care deals with a recent injury and checks for fracture or significant tissue damage. Chronic instability concerns ongoing or recurrent unreliability afterwards. Exercises and activity goals should reflect the current stage rather than restarting the same early-injury advice each time.
Will I need ankle surgery?+
Not everyone does. Rehabilitation is usually part of managing ongoing instability. If significant symptoms continue despite a suitable programme, an orthopaedic assessment can discuss whether other treatment is appropriate. Physiotherapy cannot guarantee that surgery will or will not be needed.
Related Pages
Explore related treatments and condition guides.
Further reading
For public health information, self-care guidance and advice on when to seek medical help:
- West Suffolk NHS: ankle instability
- NHS Borders: chronic ankle instability
- NHS: ankle pain and urgent symptoms
- NHS: sprains and strains
About your care at Nexus: meet our physiotherapists and read our clinical governance information.