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Cardiovascular & EmergencyGlobal

Chest Pain

Chest pain has many possible causes, ranging from minor muscle strain or indigestion to serious heart and lung conditions. Because some causes are life-threatening, it is vital to know the warning signs that require emergency help.

Written byAikins Apreku
Updated June 2026

Quick Facts

Ranges from
Minor strain to medical emergency
Most urgent concern
Heart attack
Other causes
Muscle, lung, digestion, anxiety
Key rule
If in doubt, seek emergency help
Emergency signs
Pressure, spreading pain, breathlessness

Important: chest pain can be an emergency

Chest pain should always be taken seriously, because while many causes are harmless, some are life-threatening — most importantly a heart attack. If you or someone else has chest pain that is severe, crushing or tight, spreads to the arm, jaw, neck or back, or comes with breathlessness, sweating, nausea or a feeling of dread, call emergency services immediately. It is always better to be checked and reassured than to delay treatment for a heart attack.

This article explains the range of possible causes for general understanding, but it cannot diagnose your chest pain. When in doubt, seek urgent medical help.

Possible causes of chest pain

Chest pain can come from the heart, but also from many other structures in the chest and upper body. Causes include:

  • Heart problems — such as a heart attack or angina (reduced blood flow to the heart)
  • Muscle or rib strain — often sharp and worse with movement or pressing on the area
  • Indigestion or acid reflux — a burning pain, sometimes with a sour taste
  • Lung conditions — such as a chest infection or, more seriously, a blood clot
  • Anxiety or panic attacks — which can cause real chest tightness and a racing heart
  • Costochondritis — inflammation of the cartilage joining the ribs

What to do

For any severe, sudden or worrying chest pain, especially with the emergency signs described, call emergency services without delay — do not drive yourself. For milder, clearly non-cardiac chest discomfort, such as obvious indigestion or a pulled muscle, self-care and over-the-counter remedies may be appropriate, but if you are unsure, get medical advice.

If you have known heart disease and have been given medication such as a GTN spray for angina, follow the plan your doctor gave you, and seek emergency help if the pain does not settle as expected. New, unexplained or recurring chest pain should always be assessed by a doctor.

Common non-cardiac causes of chest pain

While the priority with any chest pain is to rule out a heart problem, it is worth knowing that many cases of chest pain are not caused by the heart at all. Understanding these common, less serious causes can help put milder symptoms in context — though it never replaces medical assessment when there is any doubt.

Musculoskeletal causes are very common: strained chest muscles, rib injuries, and inflammation of the cartilage joining the ribs to the breastbone (costochondritis) can all cause chest pain that is typically sharp, localised, and worse with movement, breathing deeply or pressing on the area. Digestive causes are also frequent, with acid reflux and heartburn producing a burning chest discomfort that can sometimes be mistaken for heart pain.

Anxiety and panic attacks can cause genuine chest tightness, a racing heart and breathlessness, which can be frightening and hard to distinguish from a heart problem. Lung-related causes, such as a chest infection or inflammation of the lining of the lungs, can cause chest pain that worsens with breathing. Because these causes overlap in their symptoms with more serious conditions, medical assessment remains important whenever chest pain is new, unexplained or concerning.

When to see a doctor

  • Call emergency services now if chest pain is severe, crushing or tight, spreads to the arm, jaw, neck or back, or comes with breathlessness, sweating, nausea or a sense of dread — these can be signs of a heart attack
  • Sudden sharp chest pain with severe breathlessness, or coughing up blood
  • Chest pain after an injury to the chest
  • Any chest pain if you have known heart disease and it does not settle as your doctor advised
  • New, unexplained or recurring chest pain, even if mild — see a doctor for assessment
  • If you are ever unsure whether chest pain is serious, treat it as an emergency and seek help

Frequently Asked Questions

Chest pain that is severe, crushing or tight, spreads to the arm, jaw, neck or back, or comes with breathlessness, sweating, nausea or a sense of dread may be a heart attack. Call emergency services immediately — do not wait or drive yourself. It is safer to be checked than to delay.

Sources & References

  1. 1.American Heart Association. Warning Signs of a Heart Attack.
  2. 2.NHS. Chest pain.
  3. 3.British Heart Foundation. Chest pain.

LifeCheckIQ content is based on peer-reviewed research, recognised clinical guidelines, and authoritative medical sources, and is reviewed by Deborah Adotso, General Nurse, for clinical accuracy.

Medical Disclaimer: This tool is for informational and educational purposes only. Results are not a medical diagnosis. Always consult a qualified healthcare professional for medical advice, diagnosis, or treatment. In an emergency, call your local emergency number or visit the nearest hospital immediately.