Is it a sprain or a break?
Last updated September 3, 2026.
You often cannot tell without an X-ray: bad sprains bruise like fractures, and small fractures can still be walked on. Break-leaning signs: deformity, a snap heard or felt, no weight-bearing at all, pinpoint bone-deep pain, numbness, or immediate ballooning swelling. Sprain-leaning: you can hobble, the tenderness is diffuse and on soft tissue rather than a specific bone point. The practical clinician rule for ankles: inability to take four steps or bony tenderness at key points earns an X-ray. Same-day evaluation regardless: deformity, numbness or cold pale digits below the injury, an open wound, or zero improvement over 48 hours. First aid is the same either way: rest, ice 15 to 20 minutes with a cloth barrier, snug compression, elevation above the heart, acetaminophen or ibuprofen. Two warnings: never walk it off on a suspected break, and never skip rehab on a bad sprain, because unrehabilitated sprains are the ankles that keep re-rolling.
What to do
- Deformity, snap, zero weight-bearing, numbness: treat as a break.
- Cannot take four steps: get an X-ray.
- RICE immediately: rest, ice, compression, elevation.
- Cold pale toes or an open wound: same-day care.
- Sprains need rehab too, or they re-roll.
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