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Sternum pain

Pain over the breastbone usually comes from the chest wall — the joints, cartilage and muscles around it — and settles with simple treatment. If your heart has been checked and cleared, or you have been sent home after a chest pain assessment, we can work out what is causing it and treat it.

A man with a hand flat on the centre of his chest, describing his pain to a doctor who is taking notes on a tablet.
What it is
Pain from the breastbone and the joints, cartilage and muscles attached to it.
Commonest cause
Costochondritis — irritation where the ribs meet the breastbone.
The telling sign
Pressing on the spot reproduces the pain, and moving or breathing deeply makes it worse.

What is sternum pain?

The sternum, or breastbone, sits in the middle of the chest. The ribs join it through strips of cartilage, and the collarbones meet it at the top. Any of those joints, the cartilage, or the muscles across the chest can become painful.

The commonest cause is costochondritis: irritation of the cartilage where the upper ribs meet the breastbone. It often follows a chest infection with a lot of coughing, an unaccustomed workout, or a knock to the chest, and it usually settles over weeks.

The rib cage from the front, with the breastbone labelled and an inflamed joint marked where a rib meets it.
Costochondritis: irritation where a rib meets the breastbone. The spine, faded here, sits behind.

The upper ribs join the breastbone through strips of cartilage. Those joints are where costochondritis is felt, and where pressing reproduces the pain.

What the picture cannot show is where the pain starts. The same spot can hurt because of the joints at the front, or because the upper back is referring pain forwards along a rib — which is why the back is examined too.

Sternum pain and costochondritis are not the same thing. Costochondritis is one cause of pain over the breastbone — the most common one, but not the only one. The examination is what separates them.

Chest wall, heart or lungs?

Most chest pain seen in a clinic comes from the chest wall. These are the differences that matter.

 Chest wallHeartLungs
How it feelsSharp, and you can point to it with one fingerPressure, tightness or heaviness, hard to point toSharp, and worse on breathing in
Brought on byMovement, twisting, deep breaths, coughing, pressing on itExertion or stress, sometimes at restBreathing; may follow a long flight, surgery or illness
Pressing on the spotReproduces the painMakes no differenceMakes no difference
Other signsNoneSweating, nausea, breathlessness, pain into the jaw or armBreathlessness, fever, coughing blood, a swollen calf
What to doBook with usCall 995Call 995

Tenderness when you press points strongly to the chest wall. It does not, on its own, rule out a heart problem when the other features above are present.

When chest pain needs emergency care

Whatever you think is causing it, chest pain with any of these should be assessed as an emergency rather than at a clinic:

  • Pressure, tightness or heaviness in the centre of the chest, rather than a sharp local pain
  • Pain spreading to the jaw, neck, shoulder, arm or back
  • Sweating, nausea, or feeling faint
  • Breathlessness, or pain that worsens with exertion
  • Coughing blood, a fever, or a swollen, painful calf

This is the one kind of pain where it is better to be checked and told it was nothing. Heart and lung causes are treated by the minute, and cannot be ruled out over the phone.

Call 995

Sternum pain symptoms

  • Sharp pain at the front of the chest, near where the ribs meet the breastbone, often on the left
  • Worse on deep breaths, coughing, twisting or lifting
  • Tender when pressed, sometimes over several rib joints
  • Easier when still, and when breathing quietly
  • An ache spreading across the chest wall or round towards the back
  • With Tietze syndrome, a visible swelling over one rib joint

What causes it

Joints and cartilage

  • Costochondritis, often after coughing or unfamiliar exercise
  • Tietze syndrome, with swelling at one joint
  • Arthritis of the joint where the collarbone meets the breastbone

Injury

  • A blow to the chest, or a fall
  • A cracked rib or, less often, the breastbone itself
  • Strained chest muscles from heavy lifting or bench pressing

From the spine

  • The joints of the upper back and the joints where the ribs meet the spine, which refer pain round to the front
  • Nerve irritation between the ribs

Other causes

  • Shingles, which can cause pain before the rash appears
  • Acid reflux
  • Anxiety, which often comes with breathlessness and tingling

Sternum pain and back pain

Pain felt over the breastbone sometimes starts in the upper back. The joints between the vertebrae, and the joints where each rib meets the spine, can refer pain forwards along the rib to the front of the chest. It tends to be a band of pain on one side, worse on twisting or after long periods hunched over a desk, and pressing beside the spine often reproduces it.

Where that is the source, treating the chest wall alone does little, and the upper back is what needs attention. See back pain and rhomboid pain.

How sternum pain is diagnosed

  • History and examination — what brings the pain on, and whether pressing the rib joints reproduces it. The upper back and ribs are checked too
  • ECG and blood tests — where the heart needs ruling out
  • Chest X-ray — after an injury, or where a lung cause is suspected
  • Further imaging — occasionally, such as a CT or MRI, for injuries or where the diagnosis is unclear

Costochondritis has no test. It is diagnosed from the history and examination, and tests are used to exclude other causes rather than to confirm it.

Sternum pain treatment

Most chest wall pain settles within a few weeks, though it can take longer. Treatment is aimed at calming the irritated joints and letting the area recover.

Rest from what provokes it

A pause from press-ups, bench pressing, heavy lifting and hard chest work, while staying generally active. Heat or ice, whichever suits you better.

Pain relief

Anti-inflammatory tablets or gel over the tender area for a short period.

Physiotherapy

Gentle stretching of the chest and upper back, posture work, and breathing exercises. Where the upper back is the source, treatment is directed there.

Injection

For pain that has not settled, a local anaesthetic and steroid injection into the tender joint can help.

Treating the underlying cause

A cracked rib, shingles, reflux or an upper back problem each need their own treatment; the chest wall pain settles as they do.

Why see us about it

  • The examination does most of the work. Where the tenderness is, and what reproduces it, usually gives the answer.
  • The upper back is checked too, since chest pain often starts behind.
  • A plan for pain that lingers, including injection where it is warranted.
  • After a hospital visit. If tests showed your heart is fine but the pain has not gone, this is the next step.
  • Seen by Dr Mathew Tung, who treats chest wall pain alongside neck, back and nerve pain.

Common questions

How do I know it is not my heart?

Chest wall pain is sharp, easy to point to, and reproduced by pressing or moving. Heart pain is more often pressure or heaviness, brought on by exertion, and comes with sweating, nausea or breathlessness. If there is any doubt, call 995 — that is the safer mistake to make.

How long does costochondritis last?

Usually a few weeks. Some people have it for a few months, particularly if the chest keeps being aggravated by coughing or training.

Can I still exercise?

Keep moving, but pause the movements that provoke it — press-ups, bench pressing, heavy pulling. Walking and lower-body work are usually fine.

Why does it hurt when I breathe in?

Breathing in moves every rib joint. If those joints are inflamed, the movement itself hurts, which is why the pain eases when you breathe quietly.

Can back problems cause sternum pain?

Yes. The joints of the upper back and the rib joints beside the spine can refer pain round to the front of the chest, usually as a band on one side.

Do I need a referral to see a sternum pain doctor?

No. Bring any ECG, X-ray or hospital notes if your chest pain has already been assessed elsewhere.

Related conditions

Back pain · Rhomboid pain · Myofascial pain · Neck pain · Shoulder pain

Book a consultation

If your chest pain has already been checked and your heart is clear, bring those results. It saves repeating them.

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