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Muscle strains and sprains, graded properly - and treated with loading, not just rest.

A twisted ankle, a pulled hamstring - both common, both gradable, and both managed better with early movement than with weeks on the sofa.

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A radiographer guides a patient onto the bed of an advanced 3 Tesla MRI scanner in a London imaging suite

Why trust this guide

  • 01

    Editorial team

    Written by our editorial team from the UK sources listed on each page.

  • 02

    Sourced from guidance

    Checked against NICE CKS and peer-reviewed sources you can see at the end.

  • 03

    Current for 2026

    Reflects the shift from RICE to POLICE and optimal loading in UK musculoskeletal practice.

Key facts

Strains and sprains, at a glance.

Two related but distinct injuries, both graded the same way - what the grades mean and how UK guidance approaches early management.

  • Strains

    Damage to muscle fibres, usually from overstretching or a sudden contraction - graded I to III by how much tissue is torn.

  • Sprains

    Damage to ligaments, the tough bands that stabilise a joint - also graded I to III, with the ankle the most common site.

  • Grade I

    Mild overstretch with minimal fibre disruption - pain and stiffness, but the joint or muscle stays functionally stable.

  • Grade II

    Partial tear with some loss of function, swelling and bruising - weight-bearing and full movement are painful.

  • Grade III

    Complete rupture - marked instability, often a "pop" at the time of injury, and usually a specialist assessment.

  • First response

    POLICE (Protection, Optimal Loading, Ice, Compression, Elevation) has replaced RICE as the preferred early-management approach.

Why this guide matters

Getting the grade right changes the plan.

Strains and sprains are among the most common injuries seen in UK general practice and urgent care. Three points shape everything that follows on this page.

  • RICE has been superseded

    POLICE - Protection, Optimal Loading, Ice, Compression, Elevation - reflects the evidence that early, gentle movement heals faster than prolonged rest.

  • Imaging is targeted, not routine

    The Ottawa ankle and knee rules exist precisely so that most people with a simple sprain avoid an unnecessary X-ray.

  • Grading drives the pathway

    Grade I usually self-manages, grade II often needs bracing and physiotherapy, grade III can mean a surgical opinion.

How the diagnosis is made

From twisted ankle to a clear plan.

The steps a UK GP, physiotherapist or urgent care clinician will normally follow, in order - so you know what to expect and why.

  1. 01

    Assessing

    Mechanism of injury

    How it happened matters - a twist, a sudden sprint, a missed step, or a direct blow each points towards a different structure.

  2. 02

    Assessing

    Look, feel, move

    Swelling, bruising and tenderness are mapped, then the joint or muscle is gently moved to judge range and pain response.

  3. 03

    Assessing

    Stability testing

    For suspected ligament injury, specific stress tests (such as the anterior drawer at the ankle) check whether the joint holds firm under load.

  4. 04

    Confirming

    Ottawa ankle and knee rules

    Validated clinical rules decide who actually needs an X-ray, sparing most people an unnecessary trip to imaging.

  5. 05

    Confirming

    X-ray if indicated

    Requested only to exclude a fracture, not to diagnose the soft-tissue injury itself.

  6. 06

    Confirming

    Ultrasound or MRI

    Reserved for suspected complete ligament or tendon rupture, or when the diagnosis remains unclear after examination.

  7. 07

    Planning

    Grading and a management plan

    Once graded I to III, the plan follows - most settle with structured self-management, some need bracing, physiotherapy or surgical opinion.

Typical timeline: a same-day assessment to a settled plan, imaging arranged only if it changes management.

Symptoms

What a strain or sprain actually feels like.

The common pattern of pain, swelling and reduced movement - and the features that mean it’s time for urgent assessment.

  • Sudden pain at the time of injury

    Sharp pain at the moment of twisting, overstretching or impact - often the clearest clue to what happened and where.

  • A "pop" or tearing sensation

    Reported more often with grade II and III injuries - a sign worth mentioning to whoever assesses you.

  • Swelling

    Appears within minutes to hours as bleeding and inflammatory fluid collect around the injured tissue.

  • Bruising

    May take a day or two to surface and can track down the limb away from the original injury site.

  • Reduced range of motion

    Stiffness and guarding limit how far the joint or muscle will move, particularly in the first 48 hours.

  • Difficulty weight-bearing

    From mild discomfort on standing to a complete inability to take weight - a useful marker of severity.

  • Point tenderness

    Pressing directly over the injured muscle belly or ligament reproduces the pain sharply.

  • Red flag - visible deformity or instability

    A joint that gives way, or looks visibly out of place, needs urgent assessment rather than home management.

Treatment

How strains and sprains are treated in the UK.

POLICE first, analgesia and bracing as needed, physiotherapy for anything more than a mild injury - and surgery for complete ruptures.

  • Protection

    Limiting aggravating movement in the first day or two - not total rest, but avoiding what clearly worsens the injury.

  • Optimal loading

    Gentle, graduated movement and weight-bearing as pain allows, started early - the modern replacement for prolonged rest.

  • Ice

    Applied for short periods in the first 48 to 72 hours to help settle pain and swelling, always with a barrier to protect the skin.

  • Compression

    A supportive bandage or brace limits swelling and gives the joint or muscle a feeling of stability while it heals.

  • Elevation

    Raising the injured limb above heart level where possible helps reduce swelling in the early days.

  • Analgesia

    Paracetamol first-line, with NSAIDs considered for short-term use once significant bleeding risk has settled.

  • Bracing and physiotherapy

    Moderate-to-severe sprains benefit from a supportive brace and a structured, graduated rehabilitation programme.

  • Surgical repair

    Reserved for complete ligament rupture such as ACL injury, or for athletes and patients with ongoing instability.

What this guide is based on

The sources behind every claim on this page.

UK national guidance and specialist society standards, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your GP or physiotherapist knows your injury and history and can tell you which parts apply to you. If in doubt, get seen.

  • NICE Clinical Knowledge Summaries (CKS). Sprains and strains.

  • NICE. Fractures (non-complex): assessment and management (NG38) - Ottawa ankle and knee rules.

  • British Association of Sport and Exercise Medicine (BASEM). Soft-tissue injury management guidance.

  • Cochrane Library. Reviews on ice, compression and early mobilisation for acute ankle sprains.

Red flags

When a strain or sprain needs urgent attention.

Most soft-tissue injuries are manageable in primary care or with self-management. These are the situations that aren’t.

  • Visible deformity

    A joint or limb that looks out of position may indicate a fracture or dislocation and needs urgent assessment.

  • Inability to weight-bear at all

    Complete inability to take any weight, especially combined with the Ottawa rules, points strongly towards imaging.

  • Suspected complete rupture

    A loud "pop", immediate severe swelling and instant instability suggest a grade III tear needing specialist review.

  • Numbness or loss of pulse

    Any change in sensation, colour or pulse below the injury is a vascular or nerve emergency - seek urgent care.

  • Fever or spreading redness

    Could indicate infection rather than a simple soft-tissue injury, particularly if there is a wound nearby.

  • Recurrent giving-way

    A joint that repeatedly gives way after the initial injury has settled suggests chronic instability worth investigating.

  • Suspected ACL or Achilles rupture

    A positive Simmonds-Thompson test or marked knee instability warrants prompt orthopaedic or sports-medicine referral.

  • No improvement after two weeks

    Grade I injuries that fail to settle within this window deserve a second look rather than continued self-management.

  • Compartment syndrome features

    Severe pain out of proportion to the injury, tightness and pain on passive stretch of the limb is a surgical emergency.

Living with it

A common injury, with a well-worn recovery road.

Four things that make the biggest difference to recovery time - early movement, graduated loading, sensible support, and knowing when to ask for help.

A quiet reminder

Rest too little and you re-injure. Rest too much and you stiffen.

The middle ground - protected, graduated movement - is where most people recover fastest.

  1. 01 Move

    Move earlier than you think

    Prolonged immobilisation delays healing - gentle, pain-guided movement from early on speeds recovery.

  2. 02 Progress

    Build load gradually

    Rehabilitation works best in stages - strength and balance before a return to running, cutting or contact sport.

  3. 03 Support

    Use bracing sensibly

    A brace or strapping can help confidence and stability, but shouldn’t become a permanent substitute for rehabilitation.

  4. 04 Escalate

    Ask for physiotherapy if progress stalls

    Persistent weakness, swelling or instability after the acute phase is a good reason to ask for a structured referral.

Frequently asked

Everything we get asked about strains and sprains.

Quick answers on grading, imaging, RICE versus POLICE, and when to consider surgery.

  • What is the difference between a strain and a sprain?

    A strain is damage to a muscle or its tendon, usually from overstretching or a sudden contraction. A sprain is damage to a ligament, the tissue that stabilises a joint. Both are graded I to III by severity, and the ankle sprain is by far the most common of the two.

  • Should I still use RICE for a sprain?

    Updated guidance favours POLICE - Protection, Optimal Loading, Ice, Compression, Elevation - over the older RICE approach. The key change is optimal loading: gentle, graduated movement started early, rather than prolonged rest, which tends to slow recovery.

  • How do I know if I need an X-ray?

    The Ottawa ankle and knee rules are validated clinical criteria that clinicians use to decide who needs imaging to exclude a fracture. Most simple sprains do not need an X-ray - it is reserved for specific findings such as bony tenderness or inability to weight-bear.

  • When does a sprain need an MRI or ultrasound?

    These are reserved for suspected complete ligament or tendon rupture, or when the diagnosis remains uncertain after a thorough clinical examination. They are not routine for straightforward grade I or II injuries.

  • Do all sprains need physiotherapy?

    Mild, grade I injuries often settle with self-management and gradual return to activity. Moderate-to-severe sprains and strains, or ones with ongoing instability or weakness, benefit from a structured, graduated physiotherapy programme.

  • When is surgery needed?

    Surgical repair is generally reserved for complete ligament ruptures, such as an ACL tear, or for athletes and patients with ongoing joint instability after rehabilitation. Most muscle strains and ligament sprains heal without surgery.

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