Why Do I Keep Spraining the Same Ankle?

"It's the same ankle again. Third time this year." I hear this constantly, usually from five-a-side players, netballers, hill walkers and people who simply have a talent for finding uneven paving. The frustration is real, and so is the worry that something must be permanently wrong with the joint.

The short answer is this: recurrent ankle sprains almost always happen because the first one was never properly rehabilitated. Not because your ankle is fundamentally faulty, and not because you are unlucky. That is genuinely good news, because it means it is fixable — but the fix is more than resting and hoping.

Here is what is actually going on.

Why one sprain makes the next one likelier

A lateral ankle sprain damages the ligaments on the outside of the joint, most often the anterior talofibular ligament. Pain and swelling settle over a few weeks and walking becomes comfortable again, which feels like recovery. Underneath, though, three things have changed and none of them fix themselves.

Your position sense is blunted. Ligaments are packed with sensory receptors that tell your brain, continuously and unconsciously, where your foot is in space. When they are damaged, that signal degrades. Your ankle is now slower to detect that it is rolling — and the correction has to happen within a fraction of a second to prevent a sprain.

The muscles that protect you are weaker and slower. The peroneal muscles running down the outside of your calf are the active defence against the foot rolling inwards. After a sprain they inhibit, weaken and fire later than they should.

Your movement habits have changed. Most people unconsciously alter how they walk, land and turn for months afterwards, often shifting load in ways that leave the ankle more exposed, not less.

Add residual ligament laxity in some cases and you have a joint that is mechanically a little looser and functionally much less alert. Clinicians call the resulting pattern chronic ankle instability, and it is common.

"But it felt fine after a fortnight"

This is the crux of it. Pain and swelling resolve on a timescale of weeks. Balance, strength and confident movement take considerably longer, and they only improve if you train them deliberately.

So the typical sequence is: sprain, a few days of hobbling, a couple of weeks of taking it easy, back to football, sprain again in six weeks. Each recurrence adds a bit more laxity and a bit more caution, and the cycle tightens. Repeatedly spraining the same ankle over years is also associated with a higher risk of developing ankle arthritis later, which is the best reason I know to break the pattern now rather than putting up with it.

What proper rehabilitation looks like

The evidence on this is quite consistent, and balance training is the standout: structured balance and neuromuscular programmes meaningfully reduce the rate of repeat sprains. A sensible programme includes:

• Restoring movement, particularly the ability to bring your knee forward over your toes with the heel down. Losing this after a sprain is extremely common and it changes how you squat, land and walk downhill.
• Balance and proprioception work, progressing from standing on one leg on the floor, to eyes closed, to an unstable surface, to reaching and reacting while balanced.
• Peroneal and calf strengthening — resisted turning of the foot outwards, and heavy calf raise work through full range.
• Hopping and landing, because that is where sprains actually happen. Straight-line hops, then side to side, then rotational and reactive drills.
• Return-to-sport criteria rather than a fixed number of weeks. I want to see confident single-leg hopping in multiple directions and near-equal strength side to side before somebody goes back to competitive five-a-side.

It typically takes six to twelve weeks of consistent work. Braces and taping do reduce recurrence and are useful during that window and for high-risk sport afterwards — but they support the rehabilitation rather than replace it.

When it is not just a sprain

Recurrent problems occasionally have another explanation hiding underneath. Get it assessed, and expect the possibility of imaging, if:

• You could not weight-bear immediately after the injury, or cannot take four steps now, and there is bony tenderness over the ankle bones or the outside of the midfoot — these need a fracture ruled out
• Pain sits above the ankle, between the shin bones, and hurts on twisting — this may be a high ankle (syndesmosis) sprain, which needs a different and longer approach
• Your ankle locks, catches or gives way with deep pain in the joint line, which can indicate a cartilage or bone lesion
• Swelling and pain have never fully settled between episodes
• The ankle feels genuinely unstable during ordinary walking, not just on sport

Seek urgent medical attention for an obviously deformed ankle, numbness or a cold, pale foot after injury, or a hot, swollen joint with fever.

What to do this week

If your ankle is currently settled but you know it is unreliable, start with the simplest thing that works: single-leg balance. Stand on the dodgy leg while you brush your teeth, morning and night. Once you can hold 30 seconds steadily, close your eyes. Then add slow head turns. It is a tiny commitment and it is one of the better-evidenced injury prevention exercises there is.

Then add calf raises — three sets of fifteen, progressing to single leg — and get someone to check how you land from a hop.

If you sprain it again, the old RICE advice has largely been replaced by an emphasis on protected early movement and gradual loading rather than prolonged rest. Move it gently within comfort from the first few days.

Getting it sorted properly

Repeated sprains are one of the most satisfying things to treat, because the intervention is well understood and the results are usually clear. When I see somebody for sports injury physiotherapy in Liverpool, we establish exactly which of those deficits you have rather than guessing, then work through a staged sports injury rehabilitation programme with clear criteria for returning to your sport. With autumn fixtures starting up across Merseyside, now is a sensible time to deal with it.

Book an assessment at /portal/book or call me on +44 7443 357020. Home visits across Liverpool and Merseyside at £90 a session, online video consultations UK-wide at £60, evenings Monday to Friday, plus Saturday and Sunday daytimes. No GP referral needed.