A broken breastbone usually knits back together within about 4 to 6 weeks, and most people never need an operation.1Kingston and Richmond NHS Foundation Trust. Thoracic (rib or breastbone) fracture management But the bone healing and the pain stopping run on two different clocks, and the pain clock is the longer one. Feeling sore well after the bone has mended is usually part of normal recovery, not a sign something has gone wrong.
Why the Pain Outlasts the Bone
Chest pain after a broken breastbone typically lasts about 8 to 12 weeks, whatever your age.2Journal of Trauma and Acute Care Surgery. Sternal Fractures On average, people with a broken breastbone and no other serious injuries feel fully recovered at about 10 weeks.3Journal of Trauma and Acute Care Surgery. Sternal Fractures Some pain or discomfort can carry on for several months before recovery is complete.4Kingston and Richmond NHS Foundation Trust. Thoracic (rib or breastbone) fracture management
A healing bone still hurts for a few reasons. Every breath, cough and twist moves the chest wall, so the area is never fully rested. The muscles and soft tissue bruised in the same blow recover on their own schedule. And early new bone is softer and still remodelling, so heavy strain can still ache.
In the first one to two weeks, expect sharp pain with breathing, coughing, and getting out of bed. From weeks three to six, the pain eases at rest but returns with lifting or sudden movement. Between weeks six and twelve, it’s mostly twinges with certain movements or after a long day. Beyond three months, an occasional ache may show up, often with weather changes or hard exertion.
For a broken breastbone without other major injuries, the outlook is excellent and most people recover completely.5Journal of Trauma and Acute Care Surgery. Sternal Fractures The breastbone is held in place by the ribs and chest muscles, so most breaks stay lined up while they heal.
Feeling recovered usually means you can do ordinary daily tasks without thinking about your chest, even if a twinge shows up now and then. A simple way to track progress is to note once a week which everyday movements still hurt, such as reaching for a high shelf, laughing, or rolling over in bed. Good days and bad days are normal, so judge the trend across weeks.
How Doctors Confirm the Break and Track Healing
A first scan doesn’t always show the break. In people hurt in accidents with pain at the front of the chest, ultrasound found about 9 in 10 breastbone breaks.6PubMed Central. Diagnostic Value of Ultrasound for Sternal Fractures in Patients with Trauma Experiencing Anterior Chest Wall Pain In that group, some breaks missed on the first CT scan were picked up by ultrasound or a follow-up CT.7PubMed Central. Diagnostic Value of Ultrasound for Sternal Fractures in Patients with Trauma Experiencing Anterior Chest Wall Pain Ultrasound can also sometimes show a breastbone break that a standard X-ray misses.8PubMed. US versus conventional radiography in the diagnosis of sternal fractures So if your chest still hurts sharply over the breastbone after a clear scan, it’s reasonable to ask whether a repeat or different scan is needed. Most people don’t need repeat scans if pain is steadily improving.
A thin crack, or a break with the pieces still lined up, can hide in one view and appear in another. A clear scan therefore means no large or displaced break was seen, not necessarily that nothing is broken.
Doctors also check the heart and lungs, because the blow that breaks a breastbone can bruise them too. An ECG or blood tests may be done in hospital to rule this out. Once these are clear, the breastbone itself usually just needs time.
Healing Without Surgery Is the Norm
Most breaks of the breastbone and ribs are managed without an operation.9Kingston and Richmond NHS Foundation Trust. Thoracic (rib or breastbone) fracture management Breaks where the bone hasn’t moved much out of place tend to be stable and heal well without surgery.10PubMed. The oblique fracture of the manubrium sterni caused by a seatbelt–a rare injury? Treatment options based on the experiences gained in a level I trauma centre Breaks where the pieces have shifted and are unstable may be fixed with a metal plate, which holds the bone steady so it can heal.11PubMed Central. Fractures of the manubrium sterni: treatment options and a possible classification of different types of fractures
Your discharge notes may say “conservative treatment,” which simply means healing without surgery. Follow-up is usually with your GP or a fracture clinic rather than a surgeon.
You’re told to avoid heavy lifting, pushing, and pulling while the bone knits, because those strain the chest wall. You stay moving with gentle walking, since lying still for long stretches lets mucus collect in the lungs and stiffens the chest. There’s no cast, because the breastbone can’t be put in one; the ribs and muscles around it act as the natural splint.
A break line can look dramatic while the bone ends remain nearly in position, and position is what matters for healing. Operating brings its own risks, such as infection and wound problems, so surgeons keep it for cases where the benefit is clear.
A few signs suggest your break needs a closer look: a visible step, dip, or clicking at the breastbone when you move; pain that is getting worse instead of better after the first couple of weeks; or a grinding feeling of bone ends moving when you breathe or turn.
Where the Break Is Can Change the Timeline
The top part of the breastbone connects to the collarbones. A break there that shifts out of place can make the shoulder girdle unstable.12PubMed. The oblique fracture of the manubrium sterni caused by a seatbelt–a rare injury? Treatment options based on the experiences gained in a level I trauma centre Seat belts can cause a slanted break of this top part.13PubMed Central. Fractures of the manubrium sterni: treatment options and a possible classification of different types of fractures
A single heavy impact, such as a seat belt or steering wheel in a crash, can break the bone and bruise the tissues beneath it at the same time. Because crash breaks come with force across the chest, doctors look more carefully for other injuries, which overuse breaks rarely involve.
The breastbone can also crack from repeated strain rather than one blow, as reported in wrestlers and other athletes.14PubMed. Musculoskeletal problems of the chest wall in athletes These breaks cause gradual pain that builds as training increases, without a single injury.15PubMed. Manubrial stress fractures diagnosed on MRI: report of two cases and review of the literature A period of rest usually lets them heal, with a successful return to sport.16PubMed. Manubrial stress fractures diagnosed on MRI: report of two cases and review of the literature
To tell an overuse break from a strain, look for pain pinpointed on the breastbone itself rather than spread across the chest muscles. It worsens with training and eases with rest. An MRI or bone scan is usually needed, since X-rays often look normal. Both kinds of break are usually treated by protecting the bone from load until it heals, but the reason for the break guides what comes next.
What Can Slow Healing Down
In people whose breastbone failed to knit together, obesity, diabetes, kidney failure, lung disease, and steroid use were common.17Annals of Plastic Surgery. Rigid Fixation for the Prevention and Treatment of Sternal Complications: A Review of Our Experience After heart surgery, diabetes raises the risk of the breastbone not healing.18PubMed. Effectiveness of Various Sternal Closure Devices Post Adult Cardiac Surgery Low vitamin D or calcium, or hormone problems affecting them, can also affect bone healing.19PubMed Central. Sternal fractures and their management If you have any of these, ask your doctor whether your recovery may take longer. Failure to heal is uncommon after an accident and more often seen after heart surgery. It shows as pain and clicking that persist for many months, and it’s treated by fixing the bone with plates.
These conditions slow repair for different reasons. Healing bone needs a good blood supply, and diabetes and smoking can reduce how well blood and oxygen reach the injured area. Long-term steroid use can weaken bone and interfere with the cells that build new bone. Kidney disease can upset the body’s handling of calcium and vitamin D, which bone depends on.
Some things are in your hands. Stopping smoking helps bone heal, since smoking slows blood flow to healing tissue. Keeping blood sugar steady matters if you have diabetes. Eating enough protein and calcium and getting vitamin D supports new bone.
Body weight and age also affect how you feel afterward. After broken ribs, older people and those with higher body weight tended to report worse physical health months later.20PubMed Central. Risk factors associated with medium- to long-term outcome and health-related quality of life of patients with conservatively treated rib fractures Higher body weight was also linked to more lasting pain and breathlessness after rib breaks.21PubMed Central. Risk factors associated with medium- to long-term outcome and health-related quality of life of patients with conservatively treated rib fractures
Easing Pain and Protecting Your Breathing at Home
Choosing the most comfortable position lowers pain and eases strain on the break.22Kingston and Richmond NHS Foundation Trust. Thoracic (rib or breastbone) fracture management For the first few nights, sleep propped in a semi-sitting position.23Kingston and Richmond NHS Foundation Trust. Thoracic (rib or breastbone) fracture management Pressing a pillow or rolled towel gently over the sore spot lets you cough with less pain.24Kingston and Richmond NHS Foundation Trust. Thoracic (rib or breastbone) fracture management A recliner can be easier than a bed early on.
Getting in and out of bed hurts most. Roll onto your side first, then push up with your arms. Avoid pulling yourself up with your arms in front of you.
Pain that stops you breathing deeply or coughing can let mucus build up and lead to a chest infection. Strong painkillers help breathing, but too much can slow breathing.25PubMed Central. Ultrasound-Guided Parasternal Block Allows Optimal Pain Relief and Ventilation Improvement After a Sternal Fracture So take pain relief as prescribed, and tell your doctor if it isn’t enough to let you breathe deeply. In hospital, numbing injections around the breastbone can relieve severe pain and help breathing.26PubMed Central. Ultrasound-guided bilateral parasternal block: A boon for managing pain after sternal fracture/dislocation
Follow the dose and timing on your prescription or the label, and ask a pharmacist before combining medicines. Some anti-inflammatory painkillers are not suitable for everyone, such as people with stomach, kidney, or heart problems, so check before using them.
A simple breathing routine helps too. Take a few slow deep breaths every hour while awake, hold briefly, then breathe out, followed by a supported cough. Gentle walking around the house helps the lungs open.
A fastening chest brace held an unstable breastbone steadier and felt more comfortable than no support or tape.27PubMed. Control of separation in sternal instability by supportive devices: a comparison of an adjustable fastening brace, compression garment, and sports tape That was tested in people whose breastbone was unstable after surgery, so ask before buying one.
Getting Back to Work, Driving and Sport
When an athlete returns to sport after a breastbone injury depends on their symptoms, examination, scans and the demands of their sport.28SpringerLink / Sports Medicine. Sternal Injuries in Sport: A Review of the Literature There’s no set date; the 4 to 6 week bone healing time is a rough guide, and heavy strain usually waits until pain allows and your doctor agrees.
For driving, you need to be able to turn the wheel and brake suddenly without pain stopping you. Strong painkillers may make you drowsy and unsafe to drive. Check with your insurer and your doctor before driving again.
Desk work may be possible within one or two weeks. Manual work and lifting usually wait at least six weeks, and a phased return helps manage lingering pain.
For exercise, start with walking, then light cardio. Avoid push-ups, bench press and contact sport until you’re pain-free, build gradually, and back off if pain flares.
An activity that leaves only mild soreness settled by the next morning is one sign you may be ready for more. Pain that is sharp, builds during the activity, or lingers through the next day suggests you did too much.
When to Get Checked Again
- Breathlessness that is getting worse
- Fever or coughing up coloured phlegm, which can signal chest infection
- Chest pain that feels different, crushing, or spreads to the arm or jaw
- Pain that is worsening rather than easing after two weeks
- A clicking or moving feeling at the breastbone after six weeks
Pain from the broken bone is typically tender to the touch and worsens with movement or deep breaths. Pain that feels different, such as pressure, tightness, or sweating with it, deserves emergency attention, because a heart problem can’t be assumed to be the fracture.