An ankle sprain is an overstretch or a partial tear of the ligaments that hold the ankle together, most often the ones on the outer side, after the foot rolls inwards. Those ligaments do two jobs: they physically restrain the joint, and they feed the brain a constant stream of information about where the foot is. A sprain disrupts both. The great majority are stretched or partly torn fibres rather than a complete rupture.
It is one of the most common injuries in sport and in everyday life - a kerb, a step missed in the dark, an awkward landing, a pothole. Swelling and bruising usually appear quickly, sometimes tracking down into the foot, and the ankle is often at its most uncomfortable a day or two after the event rather than at the moment it happened.
Most sprains heal well. The problem is that they are so often under-rehabilitated: people stop once the swelling settles and walking is comfortable, and are left with lasting stiffness, calf weakness, or a nagging sense that the ankle is not quite trustworthy on uneven ground. That is what sets up repeat sprains months or years later.
Early protected movement beats resting it, and completing the balance and strength work markedly lowers the chance of spraining it again. Walking usually feels normal within one to three weeks, while sport typically takes six to twelve weeks depending on the grade. This programme starts with early protected movement, restores range and strength, retrains balance and reaction control, then rebuilds running and sport.
People who have rolled or twisted an ankle and can take at least some weight through it. If you cannot weight-bear at all, or there is bony tenderness over the ankle knobbles or the foot, get an X-ray to rule out a fracture first.
Quick movement tests you can try at home to see what your symptoms might point towards. A guide, not a diagnosis.
The first days to two weeks. Protect it, keep it elevated when swollen, and start gentle pain-free movement early rather than fully resting. Walk within comfort, using support if needed.
As swelling settles and walking is comfortable, add calf and ankle strengthening, including work against a band turning the foot outwards, and start single-leg balance.
The final stage restores control on unstable and uneven ground and rebuilds sport. Progress balance work to harder surfaces and add hopping, cutting and sport drills before full return.
A mild sprain often settles enough for normal walking in 1 to 2 weeks and sport in 2 to 6 weeks. More severe sprains can take 6 to 12 weeks or longer. Balance and strength work should continue for at least 2 to 3 months to reduce the risk of another sprain.
Move through the stages as swelling settles, range returns and each level feels controlled. Do not stop at the point where daily life is comfortable - the balance and sport-specific work in the final stage is what prevents recurrence and lasting instability.
Move it, gently and early. Protected movement and weight-bearing within comfort in the first days leads to a faster and more complete recovery than resting and immobilising.
Not always. An X-ray is recommended if you cannot take a few steps, or if there is tenderness over specific bony points at the ankle or foot. Your clinician can apply these rules quickly.
The strongest evidence is for balance and control retraining continued for a few months, plus general ankle and calf strengthening. A brace or taping can add short-term protection when you first return to sport.
A lingering sense of instability is common if the balance work has been skipped. It usually responds well to a dedicated few weeks of single-leg balance and strength training. If it keeps giving way despite this, get it reassessed.
A four-stage rehab programme for chronic ankle instability from a HCPC-registered physiotherapist - strength, balance, and the return-to-play markers.
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