A mild ankle sprain usually settles in one to TWO weeks. A bad one, where the ligament is fully torn, can take six to twelve weeks, and sometimes several months before it feels completely normal.
The pain going away is not the finish line. The ankle is weaker and your balance is worse for a while after the pain stops, and that is when most people roll it again.
So the answer to “how long” has two parts: how long until it stops hurting, and how long until it stops giving way. The second one depends on BALANCE training, and most people skip it.
Recovery time by grade
Sprains are graded by how badly the ligament on the outside of the ankle is damaged.
- Grade 1 (stretched): the ligament fibers are stretched with tiny tears. You can usually walk on it with little pain. Expect about one to two weeks
- Grade 2 (partly torn): more swelling and bruising, a limp, and the ankle may feel a little loose. Expect several weeks, somewhere between the other two grades
- Grade 3 (fully torn): a lot of pain and swelling, hard to put weight on, and the ankle feels unstable. Expect six to twelve weeks of rehab, and some people take a few months to feel fully confident on it
Bruising that spreads down into the foot or toes over the first few days is common with grade 2 and 3 sprains. It looks alarming. It’s blood tracking down with gravity.
Do I need an X-ray?
Most sprained ankles don’t. Doctors use a simple checklist called the Ottawa ankle rules. You likely need an X-ray if you have pain around the ankle bones and any of these:
- Bone tenderness at the back edge or tip of either ankle bone: pressing on the lower 6 cm (about 2 inches) of the bone hurts, not just the soft tissue in front of it
- Bone tenderness in the midfoot: at the bony bump halfway down the outside of the foot, or the bone on the inside of the midfoot
- You can’t take four steps: both right after the injury and when you’re seen, even limping
When these rules are used, they rarely miss a fracture and cut the number of ankle X-rays by about a third. If the X-ray shows a break that needs an operation, see broken ankle surgery recovery. If the pain is across the middle of the foot, with bruising on the sole, it may be a Lisfranc injury rather than a sprain.
Move it early
- First few days: protect it, put it up above your heart when you can, and use ice wrapped in a towel for up to 20 minutes at a time. Crutches are fine if you can’t walk on it yet
- Walk on it as soon as you can: gentle weight as pain allows helps the ligament heal stronger. A brace or lace-up support can help at this stage
- Get the ankle moving: trace the alphabet with your toes, and pump the foot up and down. Stiffness is easier to prevent than to fix
- A hard cast is rarely needed for a sprain. A short spell in a boot may be used for a bad grade 3. Long rest in a cast tends to leave the ankle stiffer and weaker
The pain stops before the ankle is ready. Balance training closes the gap.
Why ankles go over again
A sprain damages the small nerve sensors in the ligament that tell your brain where your foot is. Until they are retrained, the ankle reacts late on uneven ground.
- Up to 4 in 10 sprains still cause some pain, swelling or giving way a year later
- About 1 in 5 people go on to have a chronically unstable ankle that keeps rolling
- The most common reason is stopping rehab once the pain goes
Balance training that helps
- Stand on the injured leg: 30 seconds, holding a counter at first. Build up to no hands
- Make it harder: close your eyes, stand on a cushion, or turn your head side to side
- Heel raises: on both legs, then the injured leg alone. The calf protects the ankle
- Hop and land: small hops on the spot, then side to side, once walking and single-leg heel raises are easy
- Keep going for weeks after the pain stops: a few minutes a day, while brushing your teeth, is enough
- Brace or tape for sport: for the first season back, especially in court and field sports
The American Academy of Orthopaedic Surgeons says it plainly: poor balance often leads to repeat sprains.
When can I…
- Walk normally: grade 1, within days. Grade 2 and 3, as the limp fades over a few weeks
- Drive: when you can brake hard without pain or hesitation. The right ankle matters most
- Run: when you can walk without a limp, hop on the injured leg without pain and balance on it for 30 seconds
- Play sport: when you can run, cut and land from a jump on it as well as on the other side
Ligament rehab follows the same order wherever it is: protect, move, strengthen, then retrain balance and landing.
Get seen today if
- You can’t take four steps on it, even limping
- The ankle looks bent or out of shape
- The bone itself is tender at the back or tip of either ankle bone, or on the outside of the midfoot
- Your foot is numb, cold or pale
- You felt a kick or heard a pop at the back of the heel. That’s the Achilles, not a sprain. See Achilles tendon rupture recovery
Get it checked if
- It isn’t clearly improving after a week or two
- It keeps giving way months after the sprain
- Pain sits high up, above the ankle, or deep inside the joint. A high ankle sprain or cartilage injury heals more slowly
- Your calf is swollen, warm and painful, especially if you’ve been on crutches. It could be a clot
Rest gets you out of pain. Balance training keeps you from spraining it again.