Chest pain is one of the most common reasons people visit a cardiologist — and one of the most anxiety-inducing symptoms a person can experience. The immediate fear is almost always the same: "Am I having a heart attack?"
The reality is that not all chest pain is cardiac in origin. In fact, a significant proportion of patients who present with chest pain in the emergency department turn out to have non-cardiac causes — from acid reflux and muscle strain to anxiety and lung conditions.
However, chest pain should never be ignored. The challenge lies in distinguishing harmless causes from potentially life-threatening ones. This guide explains the major causes of chest pain, the red flags that demand emergency attention, and when a cardiologist consultation is warranted.
Cardiac Causes of Chest Pain
Cardiac chest pain originates from the heart or the blood vessels supplying it. These causes range from stable conditions that can be managed with medication to emergencies that require immediate intervention.
1. Angina (Stable and Unstable)
Angina is chest pain or discomfort caused by reduced blood flow to the heart muscle, usually due to narrowing of the coronary arteries (coronary artery disease).
- Stable angina occurs predictably with physical exertion or emotional stress and is relieved by rest or nitroglycerin within a few minutes. The pattern is consistent — the same level of activity triggers the same discomfort each time.
- Unstable angina is more serious. It occurs at rest, lasts longer, feels more severe than usual, or happens with less exertion than before. Unstable angina is a medical emergency because it can progress to a heart attack.
Angina is typically described as a pressure, heaviness, squeezing or tightness in the centre of the chest, sometimes radiating to the left arm, neck, jaw or back.
2. Heart Attack (Myocardial Infarction)
A heart attack occurs when a coronary artery is completely or near-completely blocked, usually by a blood clot forming on top of a ruptured cholesterol plaque. The heart muscle supplied by that artery begins to die within minutes if blood flow is not restored.
The pain of a heart attack is typically severe, crushing or squeezing, lasts more than 20 minutes, and is often accompanied by sweating, nausea, breathlessness and a sense of impending doom. It does not go away with rest. For more details, read our guide on heart attack warning signs.
3. Pericarditis
Pericarditis is inflammation of the pericardium, the thin sac surrounding the heart. It causes a sharp, stabbing chest pain that worsens with deep breathing, coughing or lying flat, and improves when sitting up and leaning forward. It is most commonly caused by viral infections and is usually not life-threatening, but it requires medical evaluation to rule out complications such as pericardial effusion (fluid around the heart).
4. Aortic Dissection
Aortic dissection is a rare but life-threatening emergency in which the inner layer of the aorta (the body's main artery) tears. The pain is sudden, severe, and often described as a tearing or ripping sensation in the chest or upper back. It is more common in patients with uncontrolled hypertension, connective tissue disorders (such as Marfan syndrome), or a bicuspid aortic valve. Aortic dissection requires immediate emergency surgery.
5. Mitral Valve Prolapse
In mitral valve prolapse (MVP), the mitral valve leaflets bulge back into the left atrium during the heart's contraction. Most people with MVP have no symptoms at all. However, some experience brief episodes of sharp or stabbing chest pain, palpitations, or dizziness. MVP is usually benign and rarely requires treatment, but it should be evaluated with an echocardiogram to rule out significant valve leakage (mitral regurgitation).
Non-Cardiac Causes of Chest Pain
Many conditions unrelated to the heart can produce chest pain that is sometimes difficult to distinguish from cardiac pain without proper evaluation. The most common non-cardiac causes include:
1. GERD / Acid Reflux
Gastroesophageal reflux disease (GERD) is one of the most common mimics of cardiac chest pain. Stomach acid flowing back into the oesophagus causes a burning sensation behind the breastbone, often after meals or when lying down. The pain can be intense enough to be mistaken for a heart attack. Key differences: GERD pain is typically burning in character, worsens after eating or with spicy food, and is relieved by antacids. It is not related to physical exertion.
2. Musculoskeletal Pain (Costochondritis)
Costochondritis is inflammation of the cartilage connecting the ribs to the breastbone. It produces a sharp, localised pain on the chest wall that worsens with pressing on the affected area, deep breathing, coughing or certain movements. It is common after heavy lifting, vigorous exercise, or prolonged coughing. Unlike cardiac pain, musculoskeletal chest pain can usually be reproduced by pressing on the tender spot.
3. Anxiety and Panic Attacks
Anxiety and panic attacks can cause chest tightness, a racing heart, shortness of breath, tingling in the hands, and a feeling of impending doom — symptoms that closely resemble a heart attack. The chest pain of a panic attack typically peaks within minutes and resolves within 20–30 minutes. While anxiety-related chest pain is not dangerous, it is important to rule out cardiac causes first, especially in patients with risk factors for heart disease. Never self-diagnose chest pain as “just anxiety” without a medical evaluation.
4. Pulmonary Causes
Several lung conditions can cause chest pain:
- Pulmonary embolism (PE): A blood clot in the lung artery causes sudden, sharp chest pain with breathlessness. PE is a medical emergency. Risk factors include prolonged immobility, recent surgery, and long-haul travel.
- Pneumonia: Lung infection can cause chest pain that worsens with breathing or coughing, usually accompanied by fever, cough, and sputum production.
- Pleurisy: Inflammation of the pleura (the membrane lining the lungs) causes a sharp, stabbing pain that worsens with each breath. It is often caused by viral infections.
5. Oesophageal Spasm
Oesophageal spasm involves abnormal contractions of the muscles in the oesophagus (food pipe). It can produce intense, squeezing chest pain that closely mimics angina — so much so that even nitroglycerin may provide temporary relief in some cases. The pain often occurs during swallowing or spontaneously. Diagnosis usually involves ruling out cardiac causes first, followed by oesophageal function testing.
Cardiac vs Non-Cardiac Chest Pain: Key Differences
The following table summarises the typical characteristics of cardiac and non-cardiac chest pain. Keep in mind that these are general patterns — individual presentations can vary, and a proper medical evaluation is always necessary.
| Feature | Cardiac Chest Pain | Non-Cardiac Chest Pain |
|---|---|---|
| Location | Central / retrosternal; diffuse | Localised; can be pointed with a finger |
| Character | Pressure, heaviness, squeezing, tightness | Sharp, stabbing, burning, or aching |
| Duration | Minutes (angina: 2–10 min; MI: >20 min) | Seconds to hours; may be constant |
| Triggers | Physical exertion, emotional stress, cold weather | Meals, body position, breathing, pressing on chest |
| Relief | Rest, nitroglycerin | Antacids, change in position, anti-inflammatory drugs |
| Radiation | Left arm, neck, jaw, back | Usually does not radiate |
| Associated symptoms | Sweating, nausea, breathlessness, dizziness | Heartburn, tenderness, tingling, cough |
Note: This table is a general guide. Atypical presentations are common, especially in women, elderly patients, and people with diabetes, who may experience cardiac events with minimal or no chest pain. When in doubt, seek medical evaluation.
Red Flags: When to Call an Ambulance
Certain patterns of chest pain should be treated as a medical emergency. If you or someone near you experiences any of the following, call an ambulance or go to the nearest hospital with a cardiac catheterisation lab immediately:
emergency Call 112 / Rush to the ER if:
- Crushing, squeezing or heavy pressure in the centre of the chest lasting more than 20 minutes
- Chest pain radiating to the left arm, jaw, neck, back or both arms
- Chest pain accompanied by profuse sweating, nausea or vomiting
- Sudden severe breathlessness with or without chest pain
- Feeling of impending doom or losing consciousness along with chest discomfort
- Sudden, tearing pain in the chest or upper back (possible aortic dissection)
- New chest pain in a patient with known coronary artery disease that does not respond to nitroglycerin
Remember: In a heart attack, every minute counts. The sooner blood flow is restored to the heart muscle — through emergency angioplasty or clot-dissolving medication — the more heart muscle is saved. Do not wait to “see if it goes away.” For guidance on what to do in a cardiac emergency, see our guide on cardiac emergencies in Delhi.
When to See a Cardiologist (Non-Emergency)
Not every chest pain episode requires an emergency visit, but several patterns warrant a planned consultation with a cardiologist. Consider booking an appointment if you have:
- Recurring chest discomfort: Episodes of chest tightness, heaviness, or pressure that come and go over days or weeks, even if they resolve on their own.
- Exertion-related chest pain: Pain or discomfort that consistently appears during walking, climbing stairs, exercising, or any physical activity and goes away with rest.
- Family history of heart disease: A first-degree relative (parent, sibling) who had a heart attack or coronary artery disease before age 55 (men) or 65 (women).
- Diabetes or hypertension with chest symptoms: Patients with diabetes, high blood pressure, or high cholesterol who develop any new chest discomfort should be evaluated promptly, as these conditions significantly increase cardiac risk.
- Unexplained breathlessness: New onset of shortness of breath with exertion, especially if accompanied by mild chest discomfort or fatigue.
- Prior cardiac history: Any new or changed symptoms in a patient who has had previous angioplasty, bypass surgery, or a known heart condition.
For a more detailed guide on when a cardiology consultation is necessary, see our article on when to see a cardiologist.
Diagnostic Tests for Chest Pain
When you visit a cardiologist for chest pain, the evaluation typically begins with a detailed history and physical examination. Based on your symptoms and risk profile, one or more of the following tests may be ordered:
| Test | What It Shows | When It Is Used |
|---|---|---|
| ECG (Electrocardiogram) | Heart’s electrical activity; detects ongoing or recent heart attack, rhythm abnormalities | First test in any cardiac evaluation; done within minutes |
| 2D Echocardiography | Heart’s structure, chamber sizes, valve function, pumping strength (ejection fraction) | To assess heart function and rule out valve disease, wall motion abnormalities, pericardial effusion |
| TMT (Treadmill Test) | Heart’s response to physical stress; detects exercise-induced ischaemia (reduced blood flow) | For patients with exertion-related symptoms and intermediate cardiac risk |
| CT Coronary Angiography | Non-invasive imaging of the coronary arteries; detects blockages, calcium deposits, plaque | When coronary artery disease is suspected but risk is low-to-intermediate; a non-invasive alternative to catheter angiography. See our CT vs invasive angiography comparison |
| Coronary Angiography (Catheter-based) | Gold-standard direct visualisation of coronary arteries; identifies exact location and severity of blockages | When significant coronary artery disease is strongly suspected or confirmed; allows treatment (angioplasty) in the same sitting if needed |
Additional blood tests — including troponin (a marker of heart muscle damage), lipid profile, blood sugar, kidney function, and thyroid function — are commonly ordered as part of the initial evaluation.
The choice of tests depends on the clinical scenario. Not every patient with chest pain needs an angiography. Your cardiologist will guide you through the most appropriate evaluation based on your symptoms, risk factors, and initial test results.
Frequently Asked Questions
Can gas cause chest pain?
Yes. Trapped gas in the stomach or oesophagus can cause chest discomfort that is sometimes mistaken for heart pain. Gas-related chest pain is typically accompanied by bloating, belching, or a feeling of fullness. It often occurs after meals, is not related to physical exertion, and is relieved by passing gas or taking antacids. However, if you are unsure whether your chest pain is from gas or your heart, it is safer to get evaluated — especially if you have risk factors for heart disease.
How do I know if my chest pain is serious?
Chest pain is more likely to be serious if it is central or diffuse (not a pinpoint location), feels like pressure or squeezing, lasts more than a few minutes, occurs with exertion, radiates to the arm or jaw, or is accompanied by sweating, nausea, breathlessness, or dizziness. Any chest pain with these features warrants urgent medical evaluation. Even if the pain seems mild, patients with diabetes, hypertension, high cholesterol, or a family history of heart disease should have a low threshold for seeking evaluation.
Can anxiety cause chest pain?
Yes. Anxiety and panic attacks are a well-recognised cause of chest pain. During a panic attack, the body releases adrenaline, which can cause chest tightness, a rapid heartbeat, shortness of breath, and tingling — symptoms that closely mimic a cardiac event. The pain typically peaks within minutes and resolves within 20–30 minutes. However, anxiety-related chest pain is a diagnosis of exclusion — cardiac causes must be ruled out first, especially if this is a new symptom or if cardiac risk factors are present.
What tests will the doctor order for chest pain?
The initial evaluation typically includes an ECG (electrocardiogram) and blood tests including troponin levels. Depending on the findings, your cardiologist may order a 2D echocardiogram, a treadmill test (TMT), a CT coronary angiography, or in some cases, an invasive coronary angiography. The specific tests depend on your symptoms, risk factors, and the results of the initial assessment. Not every patient needs all these tests — your cardiologist will guide the appropriate workup.
Can chest pain come and go for days?
Yes, and this pattern can have both cardiac and non-cardiac explanations. Stable angina can cause intermittent chest discomfort over days or weeks, typically triggered by exertion and relieved by rest. Non-cardiac causes such as costochondritis, GERD, or muscle strain can also produce on-and-off chest pain for days. Regardless of the suspected cause, chest pain that recurs over several days should be evaluated by a doctor, as even stable angina indicates underlying coronary artery disease that may need treatment.
The Bottom Line
Chest pain is a symptom with many possible causes, ranging from the entirely benign to the immediately life-threatening. The key takeaway is straightforward: never ignore chest pain, and never self-diagnose it as “just gas” or “just anxiety” without a proper medical evaluation.
If your chest pain is sudden, severe, crushing, radiating to the arm or jaw, or accompanied by sweating and breathlessness — call an ambulance. If your chest discomfort is recurring, related to exertion, or you have risk factors for heart disease — schedule a consultation with a cardiologist.
Early evaluation and timely intervention can be the difference between a routine diagnosis and a life-saving one.
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About Dr. Abhinav Aggarwal
Dr Abhinav Aggarwal is an Interventional Cardiologist practising at CardioSight Clinic, Rohini, Delhi. He performs coronary angioplasty, angiography, pacemaker implantation and complex interventions at Fortis Hospital, Shalimar Bagh. He provides comprehensive evaluation and management for patients presenting with chest pain and other cardiac symptoms.
If you are experiencing chest pain or discomfort and need clarity on whether it is cardiac in origin, a detailed evaluation can help you understand the cause and the appropriate next steps.
Book an Appointment arrow_forwardThis article is intended for general patient education and does not replace a professional medical consultation. Chest pain can have many causes, and the information provided here should not be used for self-diagnosis. If you are experiencing chest pain, please consult a qualified medical professional for evaluation.