How long does an ankle sprain take to heal?

Mild (Grade I) sprains typically heal in 1–2 weeks. Moderate (Grade II) sprains take 3–6 weeks. Severe (Grade III) tears can take 8–12+ weeks, sometimes longer with surgery.

Why is balance training so important after a sprain?

Sprains damage proprioceptors — the sensors that tell your brain where your ankle is in space. Balance drills retrain those sensors, and balance training is the single intervention most strongly linked to a lower risk of re-injury.

Should I use heat or ice on a new sprain?

Use ice (or cold therapy) in the first 72 hours to limit swelling. Avoid heat, alcohol, running, and massage in that window — together remembered by the acronym H.A.R.M.

Do ankle braces help prevent re-injury?

Yes. A semi-rigid ankle brace worn during sport for the first 6–12 months after a moderate or severe sprain has been shown to significantly reduce the risk of rolling the ankle again.

Educational guide

Heal your ankle. Rebuild your confidence.

Ankle sprains are one of the most common musculoskeletal injuries — and one of the most poorly rehabilitated. This guide walks you through how the injury heals, the four phases of recovery, and the steps that make re-injury far less likely.

See the recovery plan Prevention tips

Most common injury: ~25%; of all sports injuries
Re-injury rate: up to 40%; without rehab
Recovery time: 2–12 wk; depending on grade

Lateral ankle ligaments are the most commonly sprained structures.

Understanding the injury

What actually happens during an ankle sprain

A sprain is an injury to the ligaments — the tough bands that connect bone to bone and keep the joint stable. The most common ankle sprain damages the lateral ligaments on the outside of the ankle after the foot rolls inward.

How it usually happens

Rolling the foot inward (inversion) on an uneven surface
Landing awkwardly from a jump with the foot twisted
Sudden change of direction in running sports
A direct blow to the inside of the ankle

Warning sign: a "pop" or tearing sensation at the moment of injury, followed by rapid swelling on the outside of the ankle.

Grading the sprain

Sprains are graded by how many ligament fibres are damaged. Grading sets realistic expectations for healing time and guides treatment.

Grade I

Recovery: 1–2 weeks

Mild stretch

A few ligament fibres are stretched or microscopically torn. The ankle remains stable, with mild tenderness and little swelling.

Grade II

Recovery: 3–6 weeks

Partial tear

A larger portion of the ligament is torn. Noticeable swelling, bruising, and pain with weight-bearing; mild looseness in the joint.

Grade III

Recovery: 8–12+ weeks

Complete tear

The ligament is fully ruptured. Significant swelling, bruising, and instability — the ankle may give way during walking.

Recovery

The four phases of rehabilitation

A structured progression is the difference between an ankle that heals and one that keeps rolling. Move from one phase to the next when the goal of the current phase is met — not on a fixed calendar.

01
Protect & control swelling

Days 1 – 3
- Follow the POLICE protocol: Protection, Optimal Loading, Ice, Compression, Elevation
- Use crutches or a brace if weight-bearing is painful — but early, gentle loading is encouraged
- Avoid H.A.R.M. in the first 72 hours: Heat, Alcohol, Running, Massage
Phase goal — Reduce pain and swelling, protect the healing tissue.
02
Restore range of motion

Days 3 – 10
- Ankle alphabet: trace the letters A–Z with your toes
- Gentle non-weight-bearing circles and pumps
- Light towel scrunches and marble pickups to wake up the foot
Phase goal — Regain full, pain-free movement in all directions.
03
Rebuild strength & balance

Weeks 2 – 6
- Theraband resisted dorsiflexion, plantarflexion, inversion, eversion
- Calf raises (both legs, then single leg) — slow, controlled
- Single-leg balance, progressing from eyes open to eyes closed to unstable surfaces
Phase goal — Restore muscular support around the joint — balance work is the single biggest predictor of preventing re-injury.
04
Return to sport & plyometrics

Weeks 6+
- Hopping drills: single-leg forward, side-to-side, figure-of-eight
- Sport-specific agility: cutting, pivoting, ladder drills
- Gradual return to full training — the 80% rule: 80% pain-free, 80% strength, 80% confidence before return to play
Phase goal — Prepare the ankle for the unpredictable demands of your sport or activity.

Preventing re-injury

Six habits that keep ankles strong

Up to 40% of people who sprain an ankle will sprain it again — often because rehabilitation is stopped too early. These six habits dramatically lower that risk.

Keep training balance

Spend 5–10 minutes a day on single-leg balance drills. Progress to unstable surfaces (foam pad, cushion) and to eyes-closed. This retrains the proprioceptors that protect the ankle.

Strengthen the whole chain

Strong hips, glutes, and core change how the foot lands. Heavy lower-body work — squats, deadlifts, lunges — gives the ankle a more stable base to work from.

Warm up before activity

Five minutes of light movement (lunges, ankle circles, calf raises) increases tissue temperature and prepares the ligaments for load.

Choose the right footwear

Shoes appropriate to the surface and the activity reduce the risk of an awkward roll. Replace worn-out shoes — lateral support collapses long before the cushioning does.

Use an ankle brace or tape when returning

For the first 6–12 months after a moderate or severe sprain, wearing a semi-rigid brace during sport has been shown to significantly lower the risk of re-injury.

Don't rush the return

The biggest predictor of a second sprain is returning to sport before strength, balance, and confidence are restored. When in doubt, add another week.

Take it forward

Sprains heal. Re-injury is a choice.

The research is clear: ankles that complete a structured balance and strengthening program are dramatically less likely to roll again. Take the rehab seriously — your future self, on the trail or the court, will thank you.

Quick daily routine (10 min)

1 — Calf raises, 2 × 15 (each leg)
2 — Single-leg balance, 3 × 30 s (each leg)
3 — Theraband eversion, 2 × 15 (each leg)
4 — Ankle alphabet, 1 round