Introduction
Foot and ankle care · Ankle injuries
Ankle Sprain: Grades, Treatment and Recovery
Dr Sean LeoOrthopaedic Surgeon, Singapore
Clinic enquiries · Not an emergency service
Illustrative image
An ankle sprain is a stretch or tear of the ligaments that steady the ankle.
An ankle sprain is a stretch or tear of the ligaments that steady the ankle.
An ankle sprain is a stretch or tear of the ligaments that steady the ankle.
- Most ankle sprains happen when the foot rolls inward and strains the ligaments on the outer side of the ankle. Sprains are graded 1 to 3 by how much ligament is damaged.[2]
- The usual plan is to protect the ankle and start moving it early, with an exercise programme. Most sprains do not need an operation.[1][2]
- If the injury is more severe, or the ankle keeps giving way, the ankle ligament tear page picks up from here. If you are worried the ankle may be broken, see the ankle fracture page.
- OrthoKinetics is Dr Sean Leo’s professional brand. Clinical care is provided through OrthoSports Orthopaedic & Sports Surgery. Dr Sean Leo is a specialist orthopaedic surgeon who cares for foot and ankle problems.
What’s covered on this webpage
Follow the route in order, or jump to the stop you need. Stops you have read are marked.
The ankle’s ligaments hold the bones together and steady the joint.
The ankle’s ligaments hold the bones together and steady the joint.
The ankle’s ligaments hold the bones together and steady the joint.
Ligaments are strong bands of tissue that connect bone to bone and steady a joint.[2] On the outer side of the ankle sit the anterior talofibular ligament (ATFL) and the calcaneofibular ligament (CFL). On the inner side sits the deltoid ligament.[2]
Most sprains involve the outer ligaments, because the most common way of injuring the ankle turns the foot inward.[2][5] Sprains of the inner deltoid ligament also happen, but they are less common.[2]
Most ankle sprains happen when the foot rolls inward.
Most ankle sprains happen when the foot rolls inward.
Most ankle sprains happen when the foot rolls inward.
The usual story is a foot that rolls or turns inward, often after a misstep, a landing or a sudden change of direction. This is called an inversion injury, and it stresses the outer ligaments. Around 90% of ankle sprains follow this pattern.[2] Doctors sometimes call it a lateral ankle sprain, meaning a sprain on the outer side.[1]
The less common opposite movement, where the foot turns outward, strains the inner deltoid ligament instead.[2]
A rolled ankle is an accident of an everyday movement. It says nothing about how careful you were.
A sprained ankle usually swells, hurts and is hard to put weight on.
A sprained ankle usually swells, hurts and is hard to put weight on.
A sprained ankle usually swells, hurts and is hard to put weight on.
After a sprain, people commonly notice pain around the ankle, swelling, bruising, tenderness and difficulty putting weight on the ankle in the first days.[3]
These are useful clues, but they describe the injury rather than name it. A broken ankle can look and feel much the same, so neither the amount of swelling nor how much it hurts settles which problem you have. That distinction is made by assessment, which the next sections explain.[2]
If the pain came on suddenly at the back of the heel or calf, with a feeling of being kicked or a pop, that is a different pattern. It is covered on the Achilles tendon rupture page.
Ankle sprains are graded 1 to 3 by how much ligament is damaged.
Ankle sprains are graded 1 to 3 by how much ligament is damaged.
Ankle sprains are graded 1 to 3 by how much ligament is damaged.
Sprains are graded based on how much damage there is to the ligaments.[2] The grade helps shape how the injury is managed. Different sources label the grades with Arabic numerals (1, 2, 3) or Roman numerals (I, II, III). They mean the same three steps, and this page uses 1, 2 and 3.[1][2]
| Grade | Plain-word label | What has happened to the ligament |
|---|---|---|
| Grade 1 | Mild | Slight stretching and microscopic tearing of the ligament fibres[1][2] |
| Grade 2 | Moderate | Partial tearing of the ligament[1][2] |
| Grade 3 | Severe | Complete tear of the ligament[1][2] |
A grade describes the amount of damage. It does not decide how well you will recover. Grade 3 is the severe end of the sprain spectrum, and it is covered in depth on the ankle ligament tear page. This page names it only so you know where to go next.
Why an early grade can change
Pain and swelling can make an examination in the first hours less reliable, so the grade given at the first visit can be provisional. The severity of ligament damage is judged most reliably on a delayed examination.[1]
Is it broken or sprained — do I need an X-ray
Is it broken or sprained — do I need an X-ray
Is it broken or sprained — do I need an X-ray?
An ankle sprain and a broken ankle can present similarly, so the difference is made by assessment, not by how the injury feels.[2] Clinicians use a set of simple checks called the Ottawa ankle rules to decide whether an X-ray is needed.[1][4]
The Ottawa ankle rules look for pain over particular bony points around the ankle and midfoot. These include the ankle bones (malleoli), the base of the fifth metatarsal (the long bone on the outer side of the foot) and the navicular bone in the midfoot. They also ask whether you are able to walk at least four steps.[1] In the studies that tested them, the rules were designed to catch essentially every fracture while allowing about a third of ankle X-rays to be avoided.[4]
The rules are a clinician’s tool, applied during an examination. They are not something to score yourself from a webpage, and they cannot tell you from a distance that an X-ray is or is not needed.[1][4]
If you think the ankle may be broken, read the ankle fracture page and the fractures versus sprain guide.
When should I get this assessed?
When should I get this assessed?
When should I get this assessed?
Many people try basic self-care first after a sprain, and that is a reasonable place to start. Assessment is worth arranging if:[3]
- the pain is very bad, or the pain is getting worse;
- there is a large amount of swelling or bruising, or the swelling or bruising is getting worse;
- you cannot put any weight on the ankle or walk more than a few steps;
- it is not feeling any better after treating it yourself.
Pushing through and hoping it settles is not a plan if any of these apply. Persistent giving way of the ankle is also worth describing to a clinician rather than ignoring.[1][2]
Safety note: This webpage is not an emergency service. No list on this page can rule out a serious problem remotely.
Assessment starts with the story and an examination.
Assessment starts with the story and an examination.
Assessment starts with the story and an examination.
Assessment brings together how the injury happened, an examination of the ankle and, when it answers a useful question, imaging. Diagnosis rests on the story and the examination first. How much a scan adds depends on what needs to be answered.
The severity of ligament damage is judged most reliably on a delayed examination rather than in the first hours, so an early grade is provisional.[1] X-rays show bone and are used to rule out a fracture, guided by the Ottawa ankle rules explained above.[1]
What scans add
Scans support the examination; they do not replace it. An X-ray is used when a fracture needs to be ruled out.[1] Whether an MRI or ultrasound is useful depends on the question being asked, and that is decided with your clinician.
Most sprains are managed with protection and early movement, not an operation.
Most sprains are managed with protection and early movement, not an operation.
Most sprains are managed with protection and early movement, not an operation.
The usual approach is called functional treatment, and it is the treatment strategy of choice for ankle sprains.[1] It means protecting the ankle with tape or a brace while keeping it moving, and combining that with an exercise programme.[1] A brace showed the greatest effects among the types of functional support, and support for 4 to 6 weeks is preferred over immobilisation.[1]
A short period of immobilisation may be used to ease pain and swelling, but for a maximum of 10 days, after which functional treatment is started.[1] Early weight-bearing as tolerated is typically recommended.[2]
Exercise therapy started early is a central part of recovery. It helps recover the function of the joint and can reduce repeat sprains, mainly through balance and strengthening work.[1] Nearly all isolated low ankle sprains can be treated without surgery.[2]
What about ice, compression and elevation? In the first days, ice, compression and elevation are optional ways to ease swelling. The NHS calls this package PRICE and the American Academy of Orthopaedic Surgeons calls it RICE.[2][3] The 2018 guideline found no role for RICE alone in treating an acute ankle sprain, and no evidence that rest, ice or compression on their own improve pain, swelling or function.[1] So they can be used for comfort, but they are not the treatment. Protecting the ankle, moving early and exercising are.
No single protocol fits everyone. How the exercises are set up and progressed is worked out with your clinician.[1]
Structure / Patient / Goal
Structure / Patient / Goal
Deciding together
Structure / Patient / Goal
S
Structure: what is affected?
Structure is the ligament itself: which ligament is involved, how much of it is damaged, and how the surrounding ankle is involved. It also includes what the examination shows and what a test adds when testing is useful.
P
Patient: how does it affect you?
Patient means you as a whole person. Your symptoms, how active you are, your general health, your preferences and your circumstances all shape which options are reasonable.
G
Goal: what are you hoping to return to?
Goal is what matters to you, whether that is walking comfortably, getting back to work or returning to sport. A useful plan starts from a clear purpose.
Your plan
No single factor decides the plan alone, and neither a scan nor the grade of the sprain determines it.
Recovery is measured in weeks to months, not days.
Recovery is measured in weeks to months, not days.
Recovery
Recovery is measured in weeks to months, not days.
After an acute sprain, pain decreases rapidly within the first two weeks, and most sprains feel better after about 2 weeks.[1][3] Strenuous exercise such as running is commonly avoided for up to 8 weeks, because there is a risk of further damage.[3] A treatment programme can take as little as 2 weeks for minor sprains, or up to 6 to 12 weeks for more severe injuries, and severe sprains can take months to get back to normal.[2][3]
Feeling better is not the same as being fully healed. Progress is best judged by how the ankle responds to loading and balance work, not by a date. Early mobilisation and functional treatment are also associated with shorter sick leave and faster return to work than immobilisation.[1]
What the longer follow-up studies show
The 2018 guideline reports a substantial proportion of people with longer-term symptoms. At a follow-up of 1 to 4 years, 5% to 46% still experienced pain, 3% to 34% had recurrent sprains and 33% to 55% reported instability.[1] These are ranges pooled from several studies and describe a spread of experiences. They are not a forecast for you.
Risks and complications
Risks and complications
Risks and complications
A sprain is not always a trivial injury. A large proportion of people who sustain a lateral ankle sprain go on to develop chronic ankle instability, defined as persistent pain, swelling or giving way together with recurrent sprains for at least 12 months after the first sprain.[1] In one guideline, up to 40% of people developed it despite initial treatment with taping or bracing and physical rehabilitation. The American Academy of Orthopaedic Surgeons states that incomplete rehabilitation is the most common cause.[2] That figure is a range from published studies, not a measure of your own risk.
Completing the rehabilitation programme is how that risk is addressed. If the ankle keeps giving way or sprains repeatedly, the ankle ligament tear page covers persistent instability and the options beyond exercise.
OrthoKinetics Recovery Reflection
Recovery reflection
If keeping your ankle completely still feels like the safest choice, what changes when protection and movement work together?
After a sprain, stillness can feel like a promise that the ankle will not let you down again. That instinct is understandable. The usual plan, though, does not ask you to choose between protecting the ankle and moving it. It pairs the two, with support to protect and early, gentle movement to recover.[1]
What would it mean to let your ankle earn back your confidence through use, rather than waiting until you feel completely sure?
Confidence in a joint cannot simply be decided into being. It returns the way it was lost, through small experiences of the ankle holding up. Waiting to feel certain before you begin asks the ankle to prove itself in theory, while balance work and gradual activity let it prove itself in practice.[1] The pace is set with your clinician.
Confidence in an ankle is earned back through use rather than granted in advance. Each steady step and each balanced moment shows you what the ankle can already do.
Illustrative image
With you through the seasonsMeet Dr Sean Leo
Meet Dr Sean Leo
A consultant orthopaedic surgeon whose clinical focus is the knee, sports injuries and the lower limb.
- Dr Sean Leo is a consultant orthopaedic surgeon. OrthoKinetics is his professional brand; clinical services are provided through OrthoSports Orthopaedic & Sports Surgery at Mount Elizabeth Novena Specialist Centre and Connexion, Farrer Park Hospital.
- His clinical interests include sports injuries, including those in adolescent athletes; ligament reconstruction; realignment surgery; cartilage repair and joint-preservation approaches; knee replacement; and technology-assisted hip and knee surgery.
- The consistent aim is to return people to meaningful function and activity while avoiding unnecessary downtime.
- Qualifications: MBBS, MRCS (Ed), MMed (Ortho), FRCSEd (Ortho).
More detail: Meet Dr Sean Leo
- Training and career: Dr Leo trained in medicine at the National University of Singapore and served in the Singapore Armed Forces Medical Corps from 2000 to 2012, where his work included the care of soldiers in physically demanding roles. He completed postgraduate orthopaedic training in 2009 and a one-year clinical fellowship at Royal North Shore Hospital in Sydney, Australia, before joining Changi General Hospital as an orthopaedic consultant in 2012, where he later held the positions of Senior Consultant and Director of the Hip and Knee Service. With seniority, his educational contribution has evolved towards mentorship and support for junior doctors.
Questions people often ask
Common ankle sprain questions
Common ankle sprain questions
What is an ankle sprain, and how do I know if I have one?
An ankle sprain is a stretch or tear of the ligaments that support the ankle, most often after the foot turns inward. Pain, swelling and bruising are typical, but they can also occur with a broken ankle, so only an assessment can tell which problem you have.[2][3]
How long does a sprained ankle take to heal?
Most sprains feel better within about 2 weeks, but strenuous exercise such as running is commonly avoided for up to 8 weeks, and severe sprains can take months to get back to normal. These are ranges across many people, not a promise, and feeling better is not the same as fully healed.[2][3]
Can I walk on a sprained ankle, or should I stay off it?
Early weight-bearing as tolerated is typically recommended during the early phase of treatment, and complete rest is not the aim.[2] If you cannot put any weight on the ankle or walk more than a few steps, that is a reason to have it assessed rather than push on.[3]
Is my ankle broken or just sprained — do I need an X-ray?
A sprain and a broken ankle can look and feel alike, so the difference is made by an examination, not by how the injury feels. Clinicians use the Ottawa ankle rules to decide whether an X-ray is needed. They are applied during an examination, not by you from a webpage.[1][4]
What is the fastest way to heal a sprained ankle?
No shortcut is supported. The evidence-based path is to protect the ankle, start moving it early and follow an exercise programme with balance and strengthening work. Functional treatment of this kind is the treatment strategy of choice for ankle sprains, and exercise started early aids recovery of joint function.[1]
When should I see a doctor for a sprained ankle?
Have it assessed if the pain is very bad or getting worse, if there is a large amount of swelling or bruising or it is increasing, if you cannot put any weight on it or walk more than a few steps, or if it is not feeling any better after treating it yourself.[3]
What is the difference between an ankle sprain and an ankle ligament tear?
Sprains are graded 1 to 3 by how much ligament is damaged. Grade 3 is a complete tear of the ligament, the severe end of the sprain spectrum. That end, and persistent instability, are covered on the ankle ligament tear page, so this page names it only to point you there.[1][2]
Will my sprained ankle give way again, or develop arthritis later?
A large proportion of people who sprain an ankle go on to develop chronic ankle instability, with up to 40% doing so in one guideline, and incomplete rehabilitation is the most common cause according to the American Academy of Orthopaedic Surgeons. That range is not your personal risk. Persistent giving way is covered on the ankle ligament tear page.[1][2]
Do I need physiotherapy after a sprain, or is RICE enough?
Exercise therapy, mainly balance and strengthening work started early, is a central part of recovery. The 2018 guideline states there is no role for RICE alone in treating an acute sprain, although ice, compression and elevation may ease swelling in the first days. How your exercise is set up and supervised is decided with your clinician.[1][3]
Should I wear a brace or tape my ankle?
A brace or tape combined with an exercise programme is what the guideline finds most beneficial for a sprained ankle, and a brace showed the greatest effects among types of functional support. Functional support for 4 to 6 weeks is preferred over immobilisation. Which support suits you is decided with your clinician.[1]
Costs and insurance
Costs and insurance
Practicalities
Cost, Medisave and insurance
Ask the clinic team for current information about fees, panel status, pre-authorisation and expected payment arrangements. Insurance coverage and out-of-pocket costs depend on the individual policy and the insurer’s decision; no coverage is guaranteed.
A cost estimate for surgery can be given only after a consultation and assessment, once a surgical plan has been developed. Each individual condition is unique — implants used, time taken, and other factors contribute to the overall estimate. The estimate will be provided to you by the clinic should you decide on surgical management, and will also be used to assist in obtaining pre-authorisation from insurance where applicable.
Insurance panels. Dr Sean Leo, Orthopaedic Surgeon, is on the specialist panels of Great Eastern (GE Panel), HSBC Life (HSBC Life Shield) and Singlife (Singlife Shield), and on the Prudential Panel. AXA Insurance Singapore became part of HSBC Life in 2023, and former AXA Shield plans are now HSBC Life Shield plans.
Corporate health plans. Dr Leo is on the panels of both Alliance Medinet and iXchange, which administer medical benefits for many company health plans. If your company plan uses either panel, you can see Dr Leo as a panel doctor.
If your company uses a different panel. Some company plans still let you see a doctor of your choice outside their panel, then claim reimbursement. This varies from plan to plan, as may the co-payment, so please check your benefits with your company’s HR department.
Panel arrangements change from time to time, so please confirm with your insurer or your company’s plan administrator before your appointment.
Dr Leo is on the panels shown. If your insurer is not listed, you may ask whether co-management with an Orthosports surgeon partner on that panel is clinically and administratively appropriate. Orthosports surgeon partners are collectively on the panels of all Shield plans.
Specific benefits, pre-authorisation, reimbursement and cashless treatment depend on the individual policy and insurer approval and are not guaranteed.
Arrange a consultation: the appointment section is further down this page.
Sources
References
References
- 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. PMID 29514819.
- American Academy of Orthopaedic Surgeons (AAOS). Sprained Ankle. OrthoInfo. Available at: https://orthoinfo.org/en/diseases–conditions/sprained-ankle
- NHS. Sprains and strains. Available at: https://www.nhs.uk/conditions/sprains-and-strains/ (page last reviewed 23 April 2024).
- Stiell IG, Greenberg GH, McKnight RD, et al. Decision rules for the use of radiography in acute ankle injuries. Refinement and prospective validation. JAMA. 1993;269(9):1127-1132. doi:10.1001/jama.269.9.1127. PMID 8433468.
- Bergman R, Li D, Shuman VL. Acute Ankle Sprain. [Updated 2025 Aug 2]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing. NBK459212. PMID 29083595. Available at: https://www.ncbi.nlm.nih.gov/books/NBK459212/
Final next step
Final next step
Next step
Final next step
Reading about a problem is a starting point. An assessment brings together the history, an examination where needed and any useful tests, and helps you and your clinician decide what to do next. How much physical examination is needed is a matter of clinical judgement. It may be limited when pain makes an examination unreliable, or when imaging clearly shows a problem that matches the symptoms, such as a fracture seen on an X-ray or an MRI scan that clearly shows an injury consistent with the symptoms. The Singapore Medical Council and the UK General Medical Council both allow remote medical consultations, where a physical examination is not possible, with safeguards: the doctor must be clear about the limits of an opinion formed without an examination, and whether an in-person examination is needed, or referral to other services, is left to the clinical judgement of the attending doctor.
Signs that need urgent help
Some symptoms should not wait for a routine appointment. Each item below says where to go.
After an injury
- The ankle or foot sits at an odd angle, a bone is showing, there is a deep cut, you are in severe pain, or the toes look blue or white or feel numb. Go to an emergency department or call 995.
- You felt a sudden pop or sharp pain at the back of the heel or calf, and pushing off or rising onto your toes is difficult. Arrange an urgent same-day assessment.
- It is very painful or the pain is getting worse, the swelling or bruising is large or spreading, or it hurts to put weight on the ankle or foot. Arrange an urgent same-day assessment.
At any time
- A joint, such as the ankle, is suddenly very painful, hot, red and swollen, especially with a fever or feeling generally unwell. Go to an emergency department or call 995.
- One calf or thigh is newly painful and swollen. Arrange an urgent same-day assessment. If you also feel short of breath or have chest pain, go to an emergency department or call 995.
If you have diabetes
- You have a foot sore and a fever or feel very unwell, or the foot is cold, pale or blue. Or skin on the foot or toes has turned black, or a sore looks deep, or there is pus or redness spreading up the foot. Go to an emergency department or call 995.
- You have a new foot sore, or a foot that is hot, swollen, changed in colour or leaking fluid, without the signs above. Arrange an urgent assessment within 24 hours.
If you are admitted by the doctor at the urgent care centre of one of these private hospitals, the Parkway Pantai hospitals (Mount Elizabeth Orchard, Mount Elizabeth Novena, Gleneagles and Parkway East), Farrer Park Hospital and Thomson Medical Centre, you may ask for Dr Sean Leo to be your attending orthopaedic surgeon. If you are instead discharged and referred for orthopaedic follow-up, you may contact the clinic to arrange an appointment. Both are subject to the hospital’s admission processes and to Dr Leo’s availability.
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