How do you know if your ankle is sprained? A sprained ankle usually causes pain, swelling, bruising, and difficulty walking after the foot twists or rolls. It is one of the most common causes of ankle pain, especially during sport, stepping awkwardly, or walking on uneven ground.

Most ankle sprains affect the outer ankle ligaments. However, some injuries involve the ligaments higher between the shin bones, which is called a high ankle sprain. This page explains the common signs, how ankle sprains happen, and when you should seek professional help.

Common Signs of a Sprained Ankle

A sprained ankle often has a clear injury moment. Many people feel the ankle roll, twist, or give way, followed by immediate pain.

• Swelling around the ankle, often on the outside
• Bruising that may appear within hours or over the next day
• Pain when standing, walking, or changing direction
• Tenderness when pressing on the ligaments
• Reduced ankle movement or stiffness
• A feeling of instability or poor balance
• Sometimes a popping sensation at the time of injury

These symptoms can vary from a mild stretch injury to a more significant ligament tear. If the pain is severe or you cannot walk, the injury may be more than a simple sprain.

What Is a Sprained Ankle?

A sprained ankle is a ligament injury caused by the ankle moving beyond its normal range. The most common pattern is the foot rolling inward, which stresses the ligaments on the outside of the ankle. This is often called a lateral ankle sprain.

Some people injure the ligaments higher up between the tibia and fibula. These injuries are known as high ankle sprains. They can take longer to settle and may be more common in contact sports or twisting injuries.

How Do You Know If Your Ankle Is Sprained or Broken?

It is not always easy to tell the difference without an assessment. Sprains usually cause swelling, bruising, and pain over the ligaments. A fracture may cause more severe pain, marked tenderness over the bone, inability to walk, or pain that does not fit the usual ligament pattern.

If you cannot take four steps, have strong pain directly over the ankle bones, or the swelling is severe, you may need imaging. The Healthdirect guidance on sprains and strains is a useful general reference, but a physiotherapist or doctor can assess whether you may need further investigation.

Common Causes of a Sprained Ankle

Ankle sprains often happen during sport, running, jumping, landing awkwardly, or walking on uneven ground. They can also occur in everyday situations such as missing a step, slipping, or wearing unstable footwear.

Risk may be higher if you have had a previous ankle sprain, poor balance, reduced calf strength, or limited ankle mobility. Recurrent sprains can sometimes lead to chronic ankle instability.

What Should You Check Straight After an Ankle Injury?

Start by checking whether you can walk, how quickly swelling appears, and where the pain sits. Ligament tenderness on the outside of the ankle is common with a sprain. Pain high above the ankle joint may suggest a high ankle sprain. Pain more in the foot can overlap with problems such as a foot sprain or another foot injury.

You should also look for bruising, reduced range of motion, and whether the ankle feels unstable. These details help guide early treatment and assessment.

When Should You Worry About a Sprained Ankle?

You should seek prompt assessment if you cannot walk properly, if pain is worsening, if swelling is severe, or if the ankle looks deformed. Ongoing instability, repeated giving way, or symptoms that do not improve over several days also deserve attention.

Persistent swelling or recurrent ankle rolling may point to ligament laxity, poor balance control, or chronic ankle instability. Early management often helps reduce recovery time and improve long-term ankle control.

How Is a Sprained Ankle Treated?

Early management usually includes relative rest, compression, elevation, and gradual return to comfortable movement. A physiotherapist may guide you with pain control, swelling reduction, ankle mobility exercises, calf and lower leg strengthening, and balance retraining.

Rehabilitation is important because the ankle needs more than pain relief. It also needs strength, joint control, and confidence restored. This is one reason why acute injury treatment and progressive rehabilitation matter after an ankle sprain.

How Long Does a Sprained Ankle Take to Heal?

Mild ankle sprains may settle in a couple of weeks, while moderate or severe ligament injuries can take much longer. Recovery depends on the grade of injury, how quickly rehabilitation begins, and whether the ankle regains normal strength and balance.

If symptoms linger, or if you keep spraining the same ankle, a guided rehab program may help reduce the risk of future setbacks. For some people, adding balance improvement exercises plays an important role in recovery.

Frequently Asked Questions

Can you still walk with a sprained ankle?

Yes, some people can still walk with a mild sprained ankle, but it is usually painful and limited. If you cannot bear weight or walking is very difficult, the injury may be more severe or may involve a fracture.

Does bruising always mean the ankle is sprained?

No. Bruising is common with a sprained ankle, but it can also occur with fractures and other soft tissue injuries. Bruising helps suggest tissue damage, but it does not confirm the exact structure involved.

What is the difference between a low ankle sprain and a high ankle sprain?

A low ankle sprain usually affects the ligaments on the outside of the ankle after the foot rolls inward. A high ankle sprain involves the ligaments between the shin bones and often causes pain above the ankle joint.

Can a sprained ankle lead to long-term problems?

Yes. Without proper rehabilitation, some people develop repeated sprains, poor balance, and ongoing instability. That is why restoring strength and control matters, not just waiting for pain to settle.

Should I see a physio for a sprained ankle?

If symptoms are moderate, persistent, or recurrent, physiotherapy can help assess ligament injury severity, improve recovery, and lower the risk of future ankle sprains.

Related Articles

1. Sprained Ankle
2. Swollen Ankle
3. Ankle Pain
4. Acute Injury Treatment
5. High Ankle Sprain
6. Chronic Ankle Instability
7. Sports Injuries
8. Balance Improvement

What to Do Next

If you suspect a sprained ankle, early assessment can help clarify whether the ligaments, bones, or nearby joints have been injured. A physiotherapist can assess swelling, ligament tenderness, movement, walking ability, and ankle stability.

Targeted rehabilitation may help reduce pain, restore mobility, and improve balance so the ankle is better prepared for everyday activity, work, and sport.

References

1. Doherty C, Delahunt E, Caulfield B, Hertel J, Ryan J, Bleakley C. The incidence and prevalence of ankle sprain injury: a systematic review and meta-analysis of prospective epidemiological studies. Br J Sports Med. 2017;51(2):113-121. doi:10.1136/bjsports-2016-096178
2. Vuurberg G, Hoorntje A, Wink LM, et al. Diagnosis, treatment and prevention of ankle sprains: update of an evidence-based clinical guideline. Br J Sports Med. 2018;52(15):956. doi:10.1136/bjsports-2017-098106
3. Martin RL, Davenport TE, Fraser JJ, et al. Ankle stability and movement coordination impairments: lateral ankle ligament sprains revision 2021 clinical practice guidelines. J Orthop Sports Phys Ther. 2021;51(4):CPG1-CPG80. doi:10.2519/jospt.2021.0302