Calf strain: sudden pain at the back of the lower leg
What a pulled calf muscle feels like, how to look after it in the first few days, how long it takes, and when calf pain could be something more serious.
A calf strain is a small tear or overstretch of one of the calf muscles, the gastrocnemius or the soleus. It often happens suddenly during sprinting, jumping, stopping and starting, or an awkward step. It hurts to stand on tiptoe or push off, and can cause swelling or bruising.
When to get urgent help
Go to A&E or call 999 if you have any of these. They can be signs of a fracture, infection, blood clot or other emergency.
- A limb that looks deformed, or a joint that you cannot move or put weight on after an injury
- A cold, pale or numb foot or hand after injury
- A hot, red, swollen joint with a high temperature
- A painful, swollen, warm calf, with or without breathlessness or chest pain
What it can feel like
- Sudden sharp pain at the back of the lower leg
- Pain, swelling or bruising in the calf
- Difficulty or pain standing on tiptoe
- A tight, sore calf for days afterwards
Common contributors
- Overstretching or excessive force through the calf, for example sprinting or sudden changes of direction
- Tired muscles late in a game or run
- Returning to sport too quickly after a layoff
- Not warming up, or increasing intensity too fast
General self-care
These are general comfort measures many people find reasonable. They are not a treatment plan, and what suits one person may not suit another.
- For the first 72 hours: wear supportive shoes with a slight heel raise, avoid hard activity but not complete rest, use wrapped ice for 15 to 20 minutes with regular skin checks, light compression and elevation
- Avoid alcohol, massage and heat in the first 72 hours, as this can increase bleeding and swelling
- From the start, gentle pain-free ankle and knee movements
- Start stretching and strengthening once the pain has settled. Stop before pain and do not push into it
- Return to sport only with full strength, full range and pain-free brisk walking, then rebuild gradually
When to see your GP
See your GP promptly, or call NHS 111, if you have any of the following:
- Pain after a significant injury, fall or twist
- Pain that is constant, severe or getting worse, or wakes you at night
- Unexplained weight loss, fever or feeling generally unwell with limb pain
Consider seeing your GP if:
- You still cannot bear weight and the calf remains painful and swollen after about 10 days
- The calf becomes increasingly tender, red and hot
- A painful, swollen, warm calf without a clear injury, particularly on one side, or with breathlessness or chest pain. This could be a blood clot and needs same-day or emergency help
How osteopathy may help
Osteopaths regularly see people with calf strains and other minor sports injuries. After taking a full history and examining you, treatment typically combines hands-on techniques (such as soft-tissue work, joint mobilisation and, where suitable, manipulation) with advice and exercises you can do yourself. For some people this may help ease pain and stiffness and make movement more comfortable.
Research on hands-on treatment for calf strains is limited. The best-supported approach is early gentle movement and a graded return to strengthening and sport. An assessment helps confirm that the problem behaves like a muscle strain, and rule out other causes of calf pain such as an Achilles problem or a blood clot.
Results vary from person to person, some people feel a little sore for a day or two afterwards, and osteopathic care is not right for everyone. It sits alongside, not instead of, medical care, and staying active and doing your exercises remain central.
If you would like your symptoms assessed, you are welcome to book an appointment. Osteopathic care is not right for everyone, and if something needs medical attention first, I will tell you.
Common questions
How long does a calf strain take to heal?
An NHS trust leaflet says most people feel better after about 2 weeks and should avoid strenuous exercise for up to 8 weeks to reduce the risk of re-injury. Recovery varies with the severity of the strain.
How can I tell a calf strain from a blood clot?
A strain usually follows a specific moment of effort and is tender over a muscle. A blood clot (DVT) can cause a painful, swollen, warm or red calf without an obvious injury. If in doubt, get same-day medical help, and call 999 if you have breathlessness or chest pain.
Free 5-minute exercise sheet
A simple, printable sheet of gentle exercises and stretches, about five minutes a day, based on NHS physiotherapy leaflets. It is general information, not a personal treatment plan, and it is not suitable if you have any of the urgent signs listed above.
Sources and further reading
Links open in a new tab. Sources were checked in October 2026.
- Hull University Teaching Hospitals NHS Trust: Soft tissue injury, calf strain
- NHS: Deep vein thrombosis (DVT)
Related guides
This page is general information to help you understand common aches and pains. It is not medical advice and cannot diagnose your problem. If you are worried about your symptoms, please speak to your GP or call NHS 111.