Key takeaways
- Most fractures heal in 6 to 12 weeks. This varies by bone, severity, age, and general health.
- A fracture line still visible on an X-ray in the first 3 months does not usually mean healing has stalled.
- Smoking is the single biggest factor within your control that can delay healing.
- Stress fractures build up gradually from repeated activity and are common in the foot, especially the metatarsals.
- Most fractures are treated without surgery, though unstable or displaced breaks may need fixation.
- Seek urgent medical attention for severe pain, a visible deformity, numbness, or an open wound.
A sudden break can be frightening, and one of the first questions is usually how long it will take to get back to normal. Most fractures heal in about 6 to 12 weeks, but this varies depending on the bone involved, the severity of the break, and your age and overall health. Healing well enough to show on an X-ray isn’t always the same as feeling fully recovered, and some stiffness can linger.
A fracture is a crack or a break in a bone. It can range from a fine hairline crack to a complete break, and its appearance doesn’t predict how long it will take to heal. This guide covers how fractures heal, what can slow the process down, and what to expect if you have one of the most common fractures around the foot and ankle. Mr Francesc Malagelada, a London-based consultant trauma and orthopaedic surgeon, treats these injuries regularly and explains what is happening as the bone heals.
What is a bone fracture?
A fracture is a crack or complete break in a bone. Most come from an obvious cause, such as a fall, a twist, or a direct blow. Bone can also crack under much less force if a condition like osteoporosis has weakened it.
Not every fracture starts with a single accident. Repeated, low-level stress on a bone, from running or a sudden jump in activity, can cause a crack to build up gradually rather than happen in one moment. This type of injury is called a stress fracture, and we cover it further down this page.
How long does a bone fracture take to heal?
Most fractures heal in about 6 to 12 weeks, though some heal sooner and more complicated breaks can take considerably longer. No single healing timeline applies to everyone. So much depends on the specific injury and the person healing from it.
If healing takes roughly twice as long as expected for that bone and your age, surgeons describe this as delayed union. If it still has not healed after 6 to 9 months, it is called non-union. Both are uncommon, but if either happens to you, established treatment options are available, which we cover further down this page.
We cannot promise a specific healing time for your particular fracture without seeing your X-rays and understanding your circumstances. These numbers are guidelines, not hard rules.
What happens when a broken bone heals?
The body starts repairing a fracture almost immediately. Blood collects around the break and forms a clot, which becomes scaffolding for new tissue. Over the next few weeks, this tissue gradually turns into new bone.
By around three weeks, a soft cartilage-like callus has usually formed enough to hold the two ends of the bone together. Between 4 and 8 weeks, this callus usually becomes stronger, closer to the density of mature bone. Around 12 weeks, it typically appears clearly on an X-ray as solid new bone.
A question we hear often is: ‘Why does the X-ray still show a line at the fracture site for the first three months, even though everything feels like it is improving?’ The answer is that early healing stages don’t show up well on a standard X-ray. A visible line at 6 or 8 weeks does not usually mean healing has stalled. Your surgeon will assess progress by looking at your symptoms and X-rays together, sometimes using additional scans as well.
What can delay bone healing?
Smoking is the single biggest factor within your control that can slow bone healing. It reduces blood flow to the fracture site. Bone healing depends heavily on a good blood supply to bring in the cells and nutrients needed to build new tissue. Patients who smoke are more likely to experience delayed union or non-union, and more likely to develop other complications after surgery. Stopping smoking, even during the weeks around your injury or operation, improves your chances of straightforward healing.
Other factors that can slow healing include:
- A poor blood supply to the fracture site, whether from the injury itself or an underlying condition
- Health conditions such as diabetes, osteoporosis, or peripheral vascular disease
- Certain medications, including some long-term steroid treatments
- More severe or displaced fractures
- Inadequate protection of the fracture while it heals
- Patient-specific factors such as nutrition and age
What is a stress fracture?
A stress fracture is a different type of injury. It doesn’t happen from a direct, heavy blow or force. Instead, it develops gradually through repeated loading, adding small amounts of microtrauma that build up faster than the bone can repair itself.
The foot is one of the most common sites for a stress fracture. The metatarsals, the long bones behind the toes, are particularly susceptible. This often happens to runners and other athletes who increase their training too quickly, without giving the bone time to adapt. It typically presents as pain and swelling on the top of the foot that builds up with activity. Walking is often possible but uncomfortable.
Because a stress fracture isn’t caused by a specific incident and doesn’t always show clearly on an initial X-ray, it can be mistaken for a soft tissue strain. Mr Malagelada, a board member of the British Orthopaedic Foot and Ankle Society, sees this regularly in his practice and will often use an MRI or ultrasound to confirm the diagnosis.
What are the symptoms of a fracture?
The classic symptoms of a fracture include:
- Pain, usually sharp at first and worse with movement
- Swelling around the injured area
- Bruising, which may take a day or two to appear
- Tenderness when the area is touched
- Difficulty using the affected limb, or putting weight through the foot
- A visible deformity, in more severe fractures
A stress fracture often behaves differently. Pain may start only during activity and ease with rest, becoming more constant as the injury progresses. Symptoms alone cannot confirm a fracture, so an X-ray or other imaging is usually needed.
Mr Francesc Malagelada
Mr Francesc Malagelada is a Consultant Trauma and Orthopaedic Surgeon and a senior trauma consultant at the Royal London Hospital, where he treats ankle fractures of all severities. You don’t need a GP referral to book a specialist assessment.
How is a fracture treated?
Most fractures are treated without surgery. Depending on the bone and type of break, this usually means rest, protection in a cast, boot, or splint, and reduced weight-bearing. Physiotherapy often follows as movement returns.
Surgery is usually reserved for unstable or significantly displaced fractures. Fractures that involve a joint surface often require plates, screws, or wires to hold the bone in the correct position and help it heal well. In selected cases, we can use minimally invasive fixation techniques with smaller incisions to help you return to normal activity more quickly. As with any operation, surgery carries risks. These will be discussed with you fully before you decide whether to go ahead.
Whichever route is right for your fracture, treatment and healing time are closely linked. A fracture that is well protected from the start tends to heal more predictably. That’s why follow-up X-rays and a clear rehabilitation plan are also important.
How can you support fracture recovery?
Time plays a major role in healing, but you can do a lot to support your recovery
- Follow your treatment plan and any weight-bearing restrictions you have been given
- Protect the fracture as advised, even when it starts feeling better
- Attend your follow-up appointments so healing can be checked on X-ray
- Complete any physiotherapy you are given once you are cleared to start
- Eat a balanced diet. Good nutrition supports bone repair
- Avoid smoking. It affects blood flow to the healing bone
- Return to sport or heavy activity gradually
In a small number of cases where healing is delayed or has stalled, a bone healing stimulator using low-intensity pulsed ultrasound may be considered. This is a home-based device, assessed by NICE (guidance HTG296). It’s specifically considered for long bone fractures with delayed healing or non-union. It may be an option worth discussing with your surgeon if your fracture falls into this category.
When should you see a doctor about a possible fracture?
A medical professional should assess any suspected fracture. Even fractures that feel manageable can heal poorly without the right treatment. You should seek urgent attention if you have:
- Severe pain that is not controlled by simple painkillers
- Significant or rapidly worsening swelling
- A visible deformity, or the limb sitting at an odd angle
- Inability to bear any weight, or use the limb at all
- Numbness, tingling, or a change in colour in the foot or toes
- An open wound at the site of a suspected fracture
Frequently asked questions about bone fractures
How long does a broken bone take to heal?
Most fractures heal in around 6 to 12 weeks. This depends on the affected bone, the severity of the break, and your age and general health. More complex fractures, or those needing surgery, can take longer.
Can a fracture heal in 6 weeks?
Yes, many minor, stable fractures, particularly in children or in smaller bones such as the toes, often heal within 6 weeks. Larger or more complicated fractures usually need longer.
Why is my fracture still painful after it has healed?
Some aching, stiffness, or mild swelling for weeks or months after a fracture heals is common, especially if a nearby joint was involved. If pain is severe or getting worse, especially with new swelling, get checked immediately.
Does smoking slow bone healing?
Yes. Smoking reduces blood flow to the fracture site. This can delay healing and increase the risk of complications such as non-union. Stopping smoking, even temporarily around the time of your injury, can improve your chances of healing well.
Can you walk on a fractured foot?
This depends entirely on which bone is broken and how stable the fracture is. Some foot fractures allow limited weight-bearing in a boot early on, while others require no weight-bearing at all. Your surgeon will tell you what is safe for your specific injury.
How long does a stress fracture take to heal?
Most metatarsal stress fractures settle within 6 to 8 weeks after rest from the activity that caused them, use of a boot or orthopaedic shoe, and physiotherapy. It can take longer if you resume activity before the bone has fully healed.