A calf strain is an injury where fibres in the calf muscles (gastrocnemius or soleus) are overstretched or torn. It often happens during running, sprinting or sudden push-off. Most calf strains recover without surgery through a gradual, active rehab programme.
Also known as pulled calf, calf tear, torn calf muscle, tennis leg, soleus strain
Symptoms
- Sudden sharp or tearing pain in the back of the lower leg
- Some people feel a pop or a sensation of being kicked
- Tightness and stiffness, which may be the only sign in milder strains
- Pain when walking, rising onto tiptoe or pushing off
- Swelling or bruising that may spread down towards the ankle
Causes and risk factors
- Sudden acceleration, push-off or change of direction
- Fatigue late in a game or long run
- Increasing age
- A previous calf strain or other leg muscle injury
- Too little calf strength or conditioning for the activity
What the evidence says helps
- Muscle injury care has moved away from long rest towards early, protected movement and progressive loading.1
- Most calf strains are managed without surgery. Surgery is rarely needed and is reserved for severe complete tears or complications.2
- Experts recommend a staged plan: rebuilding calf strength, then adding hopping, running and sport-specific drills before returning to play.3
- Return to sport is best guided by how the calf copes with load, not by fixed timelines alone. Injuries from running activities and repeat injuries tend to take longer.3
- NHS advice supports simple early care, such as elevation, pain relief and gentle ankle movement, then a gradual return to activity.5
Things you can try at home
- For the first few days, keep the leg raised when resting and use a wrapped ice pack for short periods
- Avoid heat, alcohol and strenuous exercise in the first 72 hours
- Gently move your ankle up and down as comfort allows
- A shoe with a small heel may make walking easier at first
- Build up walking, calf raises and then jogging gradually over the following weeks
When to get urgent help
Contact your GP urgently, call NHS 111, or call 999 in an emergency if you have:
- Throbbing or cramping calf pain with swelling, warmth, or red or darkened skin, especially without a clear injury: get an urgent GP appointment or call NHS 111, as this could be a blood clot (DVT)
- Calf symptoms with chest pain or breathlessness: call 999
- A snap at the back of the heel and difficulty pushing off or standing on tiptoe: go to A&E, as the Achilles tendon may be torn
- Severe pain, tense swelling, numbness or pins and needles after an injury: call 999 or go to A&E
- Pain that keeps getting worse with increasing redness and heat: see a doctor straight away
How Apollo can help
We assess which part of the calf is involved and how severe the strain is, and check for signs that need medical review. We explain your expected recovery and build a progressive rehab plan, from early movement through to strength, hopping and running drills. Sports massage or hands-on care may be used for comfort alongside exercise. Strength testing can help guide your return to sport.
No GP referral needed. Clinics in Sheringham, Coltishall and Norwich.
Related reading
Frequently asked questions
How long does a calf strain take to heal?
Mild strains may settle in one to three weeks. More severe tears can take up to three months. Soleus injuries and repeat strains often take longer than expected.
Should I stretch a pulled calf?
Gentle ankle movement and light stretching within comfort can help after the first few days. Avoid forceful stretching early on. Strengthening is the main part of rehab.
How can I tell a calf strain from a blood clot?
A strain usually starts suddenly during activity. A clot often comes on without injury and causes throbbing pain, swelling and warm, discoloured skin. If you are unsure, get an urgent GP appointment or call NHS 111.
References
- Edouard P, et al. (2023). Traumatic muscle injury. Nature Reviews Disease Primers. View source
- Meek WM, et al. (2022). Calf strain in athletes. JBJS Reviews. View source
- Green B, et al. (2022). The assessment, management and prevention of calf muscle strain injuries: a qualitative study of the practices and perspectives of 20 expert sports clinicians. Sports Medicine - Open. View source
- Green B, et al. (2017). Calf muscle strain injuries in sport: a systematic review of risk factors for injury. British Journal of Sports Medicine. View source
- University Hospitals Plymouth NHS Trust (2025). Calf muscle tears and strains. Patient information leaflet. View source
- NHS. Deep vein thrombosis (DVT). NHS website (accessed November 2026). View source
This page is general information, not a diagnosis or a substitute for medical advice. If you are worried about your symptoms, speak to your GP or a registered healthcare professional. Content prepared from the sources above, November 2026.
