High Ankle Sprain: Symptoms, Recovery Time, and How It Differs From a Regular Sprain

You rolled or twisted your ankle, the swelling is higher up your leg than you expected, and weeks later it still aches when you push off or pivot. If a "normal" ankle sprain doesn't seem to describe what you're feeling, you may be dealing with a high ankle sprain, a different and slower-healing injury that lives just above the ankle joint.

The good news: most high ankle sprains heal fully with the right care and patience. The catch is that they take longer than the common rolled ankle, and a small share need surgery to be stable again. Here is what a high ankle sprain actually is, how to tell it apart, and what recovery realistically looks like.

What is a high ankle sprain?

A high ankle sprain, also called a syndesmotic injury, is a tear of the ligaments that connect your two lower leg bones, the tibia and fibula, just above the ankle joint. This connection is called the syndesmosis. It includes the anterior inferior tibiofibular ligament, the posterior inferior tibiofibular ligament, and the interosseous membrane that runs between the two bones.

This is what makes it "high." A typical sprained ankle injures the ligaments on the outside of the ankle, below the joint. A high ankle sprain sits above the joint, where the leg bones meet, so the pain, swelling, and tenderness tend to be higher up than people expect.

High ankle sprain vs. a regular (low) ankle sprain

The everyday "rolled ankle" is a low, or lateral, ankle sprain, and it's far more common. High ankle sprains make up only a minority of all ankle sprains and behave differently, which is why they're often missed at first.

Key differences to know:

• Location: low sprains hurt on the outer ankle; high sprains hurt above the ankle, between the leg bones.
• Cause: low sprains usually come from rolling the foot inward; high sprains most often come from a sudden outward (external) rotation or twisting of the foot, common in cutting and contact sports.
• Healing time: low sprains can recover quickly, but high ankle sprains heal more slowly and need a more cautious return to activity.
• Stability: high sprains are more likely to involve instability between the leg bones, which is what can drive the need for surgery.

Symptoms and how it's diagnosed

High ankle sprains tend to cause pain above the ankle that worsens when you push off, pivot, or rotate the foot. Swelling and tenderness usually sit higher than a routine sprain, and walking or climbing stairs can be painful.

Doctors diagnose it with a focused exam and imaging. Two common physical tests are the squeeze test (compressing the calf to see if it reproduces pain higher up) and the external rotation stress test (rotating the foot outward). Weight-bearing X-rays check whether the tibia and fibula have widened apart, a sign of instability called diastasis, and MRI is used to see the ligaments and grade how badly they're torn.

• Squeeze test of the lower leg
• External rotation stress test of the foot and ankle
• Weight-bearing X-rays to assess tibiofibular widening (diastasis)
• MRI to confirm and grade the ligament injury

How long does a high ankle sprain take to heal?

For most people, recovery takes about six to eight weeks. That said, high ankle sprains are slower and more stubborn than the typical sprain. Full recovery can take a year or longer in some cases, and roughly half of patients report some symptoms for up to six months.

Athletes give us a useful benchmark. In a meta-analysis of 1,133 syndesmotic sprains in athletes, 99% returned to play, with a mean return of about 52 days. Those treated without surgery returned faster, averaging around 39 days, while surgically treated athletes averaged about 71 days. Your own timeline depends heavily on the grade of the injury and how stable the joint is.

Treatment, grades, and when surgery is needed

Treatment depends on how severe and stable the injury is. Many high ankle sprains are treated without surgery, but they're managed more conservatively than a low sprain because the joint needs time to become stable again. Early care often follows R.I.C.E. (rest, ice, compression, elevation) for the first few days, followed by bracing, taping, or sometimes casting, a course of physical therapy, and anti-inflammatory medication as advised by your clinician.

Doctors often describe high ankle sprains by grade:

• Grade I: a sprain without instability, usually treated with conservative care.
• Grade II: a partial tear with potential instability, which needs careful evaluation.
• Grade III: a complete tear with the leg bones separating (diastasis), which typically requires surgical fixation, often with a screw or a suture-button (TightRope) construct, followed by roughly 12 to 16 weeks of recovery.

When to see a doctor

Because high ankle sprains are easy to underestimate and can be unstable, it's worth getting an ankle injury checked rather than guessing. See a clinician promptly if you can't bear weight, if pain and swelling sit high above the ankle, if the joint feels unstable or gives way, or if a "sprain" isn't improving on the timeline you'd expect from a routine one.

Seek urgent care for severe pain, an obvious deformity, numbness, or a foot that looks pale or cold, which can signal a more serious injury. Getting the right diagnosis early matters here, because identifying instability sooner can change whether you need surgery and how smoothly you recover. If you're unsure where your injury falls, a quick evaluation, in person or through a telehealth visit, can point you toward the right next step.