Broken ankle
Also called: ankle fracture, fractured ankle, lateral malleolus fracture, bimalleolar fracture, trimalleolar fracture, fractured fibula at the ankle. Clinical name: Ankle fracture (a break of the lateral, medial or posterior malleolus, alone or in combination).
A suspected broken ankle needs an X-ray and a clinician. The bone usually heals in 6–8 weeks (NHS), but getting back to normal activities takes about 3–4 months, and sport often longer (AAOS).
What it actually is
A broken ankle is not a wait-and-see injury: if you might have one, it needs an X-ray and a clinician, at an urgent treatment centre, injury unit or A&E. It means a break in one or more of the bones that form the ankle joint, usually the bony knobs at the lower end of the shinbone (tibia) and the thinner fibula on the outside of the leg. It tends to happen the way a sprain does, by rolling or twisting the ankle on a landing, a kerb or in a tackle, which is exactly why the two get confused. If you can’t take weight on it, it looks out of shape, you heard a crack, or the bone itself is tender, get it checked.
What happens next depends on what the X-ray shows. A stable break, with the bone pieces still lined up, is often managed in a walking boot or cast, sometimes with weight allowed from the start. A displaced or unstable fracture, particularly one where the joint has dislocated or both sides of the ankle are broken, usually needs surgery to hold the bones in place with plates and screws. The NHS says most broken ankles take 6 to 8 weeks to heal, and AAOS puts a return to normal activities at about 3 to 4 months, with sport often taking longer.
The bone healing is only part of the story. After weeks in a boot or cast the ankle comes out stiff and weak, balance needs retraining, and swelling can linger for months, especially by the evening. Rehab is where the real recovery happens: ankle movement first, then strength and balance work, then a graded return to running, cutting and contact for football, GAA, rugby or hockey. Every timeframe here is a typical range, not a promise, and the call on when to go back to full sport is made with your physio or surgeon. Tracked week by week, slow progress is easier to see, and so are the signs that something needs checking.
How bad is it?
A suspected broken ankle needs an X-ray and a clinician first. Ankle fractures aren't graded 1–2–3 like a sprain; they are described from the X-ray by which bones are broken (the outer ankle bone, the inner one, the back of the shinbone, or a combination) and whether the joint is stable. A stable, non-displaced fracture, where the bone pieces stay lined up, is often treated in a walking boot or cast without surgery. A displaced or unstable fracture, especially one with a dislocated joint or breaks on both sides of the ankle, usually needs surgery with plates and screws. The NHS says a broken ankle usually takes 6 to 8 weeks to heal; AAOS puts complete bone healing at 10 to 12 weeks, a return to normal activities at 3 to 4 months, and full recovery from some fractures at up to 2 years.
How long will it take?
Recovery moves in phases. This is the typical shape of it. Yours may run faster or slower, and the numbers below are general ranges, not a forecast for your specific injury.
When to get it looked at
Most cases settle with time and sensible loading. Get it assessed by a professional if any of these apply, as they can point to something that needs hands-on care:
- A bone sticking out through the skin, or a bad cut or wound over the ankle: go to A&E or call 999, and don't drive yourself
- An ankle at an odd angle or that looks deformed, severe pain, or a crack heard at the moment of injury: go to A&E or call 999
- Toes that look blue or white, or a foot that feels numb or cold: go to A&E or call 999
- You can't put weight on it or walk more than a few steps: it needs an X-ray, so go to an urgent treatment centre or A&E, or call NHS 111
- Pain, swelling or bruising that is very bad or getting worse, or a high temperature or feeling hot, cold or shivery: call NHS 111 straight away
- In a cast or boot: worsening pain, numb or burning toes, a cast that feels too tight, toes that swell or turn blue or white, or a smell or discharge from under the cast: call NHS 111 or your fracture clinic the same day
This is a list of warning signs, not a diagnosis. If you are worried, or the pain is severe, see a GP, physiotherapist or urgent care.
What to track while you recover
Fracture recovery moves in steps, and each one (more weight through the boot, off the crutches, out of the boot, back to running) is decided at clinic. A short daily record of pain, swelling and what the ankle actually did gives you and your fracture clinic the real picture between appointments.
- Pain score, 0–10, at rest, when walking, and at night
- Swelling compared with the other ankle, and whether it is worse by evening and easing week to week
- How much weight you put through it, with or without the boot and crutches, and how far you walked
- Cast or boot checks: toes warm, pink and moving, and any rubbing, numbness or tightness
- Exercises done (toe and ankle movement, stretches, balance work) and how well you slept
This is exactly what InjuryLog does.
Log each of these in seconds, watch the trend build day by day, and keep every scan and receipt tied to this one injury. Free on iOS, Android soon.
What to tell your physio
Whether it's the fracture clinic, your surgeon or a physio, the plan moves in stages, and each review goes better when you can show how the ankle has behaved since the last one rather than relying on memory.
- How it happened (a roll, a twist, a fall from height, a tackle) and whether you could take any weight on it straight afterwards
- What you were told about the fracture: which bone, stable or not, boot, cast or surgery, and how much weight you're meant to put through it
- Pain and swelling trends since the last appointment, and anything new, like numbness, rubbing or a cast that feels tight
- How far and how comfortably you can walk now, with or without the boot and crutches, and how you manage stairs
- Your job, sport and goals, such as driving, standing all day at work, or getting back to football, GAA or running
Walk in with the whole picture.
InjuryLog turns your daily logs into a clean Physio Visit Pack, a one-page summary your physio can actually read, so the first appointment starts with facts, not guesswork.
The questions people actually ask
How long does a broken ankle take to heal?
The NHS says a broken ankle usually takes 6 to 8 weeks to heal, though it can take longer. AAOS describes early bone healing at around 6 weeks and complete healing at 10 to 12 weeks, with most people back to normal activities within 3 to 4 months. Sport often takes longer, a limp can hang around for several months, and after some more complex fractures full recovery can take up to 2 years. Where you land in that range depends on which bones are broken, whether you needed surgery, and how the rehab goes. These are typical ranges, not a promise for your ankle.
Is my ankle broken or sprained?
You can't reliably tell at home, and AAOS notes that a severe sprain can cause as much pain, bruising and swelling as a fracture. What matters are the signs that mean it needs an X-ray: you can't put weight on it or walk more than a few steps, the ankle looks deformed or sits at an odd angle, you heard a crack when it happened, or the ankle bones themselves are tender rather than just the soft tissue around them. Treat any of these as a reason to get it checked at an urgent treatment centre, injury unit or A&E, not as a test to pass. AAOS warns that putting weight through a fracture too early can let the pieces shift and heal badly.
What are the symptoms of a broken ankle?
AAOS lists immediate, severe pain, swelling and bruising, tenderness to touch, not being able to bear weight, and deformity, especially if the joint has dislocated; some people also notice numbness or coolness in the foot. The NHS adds that a bone sticking out, a bad wound, toes that look blue or white or feel numb, or an ankle at an odd angle all mean going straight to A&E or calling 999. Not every broken ankle looks dramatic: AAOS notes a simple break of one bone may not even stop you walking, which is why a suspicious ankle injury needs a clinician and an X-ray rather than a guess.
How long is recovery after ankle fracture surgery?
Surgery is usually for displaced or unstable fractures, with plates, screws or a rod holding the bones in line while they heal. AAOS's recovery guidance for ankle fractures puts early bone healing at around 6 weeks and complete healing at 10 to 12 weeks, with most people back to normal activities within 3 to 4 months. Your surgeon decides when you can start taking weight, because loading too early can let the pieces shift. Sport tends to take longer, stiffness and swelling can last many months, and after some fractures full recovery takes up to 2 years. Treat all of these as estimates, not dates.
When can I walk on a broken ankle?
It depends on the fracture, so follow your fracture clinic's instructions exactly. The NHS says your doctor will tell you how long to wear the boot or cast and how much weight to put on the ankle, and you may be given crutches. For some stable fractures of the outer ankle bone treated in a boot, an East Sussex Healthcare NHS Trust leaflet allows walking as comfort allows from the start, with crutches as needed, then weaning out of the boot over weeks 6 to 8. Other fractures need a period of limited or no weight, because putting weight through it too early can let the pieces shift (AAOS).
When can I drive after breaking my ankle?
AAOS says that if you broke your right ankle, you can probably get back to driving at around 9 to 12 weeks. That is a rough guide rather than a rule: the timing depends on which bones were broken, whether you had surgery and how the ankle has healed, so ask your fracture clinic or surgeon before you drive. In the meantime, plan lifts for your follow-up appointments, which AAOS says often include X-rays at around 2, 6 and 12 weeks, although schedules vary from clinic to clinic.
Why is my ankle still swollen months after the fracture?
Because that is common, even after the bone has healed. An East Sussex Healthcare NHS Trust leaflet on fractures of the outer ankle bone says pain and swelling can go on for 3 to 6 months and are often worse at the end of the day, and AAOS notes that stiffness and swelling can last for many months, helped by rehab exercises and raising the leg. What is not normal is swelling that suddenly gets worse, a cast or boot that becomes too tight, toes that change colour or go numb, or feeling hot, cold or shivery. Those need a call to NHS 111 or your fracture clinic.
Sources
- Broken ankle, NHS
- Ankle Fractures (Broken Ankle), AAOS OrthoInfo
- Ankle Fracture: patient information (Fracture Care Team shared care plan), East Sussex Healthcare NHS Trust
- Sprained Ankle, AAOS OrthoInfo
- Sprains and strains, NHS