Angina
Educational information. Individual clinical review of this presentation by Dr. Ehsan is not yet documented. It does not replace personal medical evaluation.
Source: MedlinePlus, National Library of Medicine. Read the original source
MedlinePlus data edition September 26, 2026. Imported September 27, 2026. These dates do not indicate a new clinical review of the article.
Angina is chest pain or discomfort you feel when there is not enough blood flow to your heart muscle. Your heart muscle needs the oxygen that the blood carries. Angina may feel like pressure or a squeezing pain in your chest. It may feel like indigestion. You may also feel pain in your shoulders, arms, neck, jaw, or back.
Angina is a symptom of coronary artery disease (CAD), the most common heart disease. CAD happens when a sticky substance called plaque builds up in the arteries that supply blood to the heart, reducing blood flow.
There are three types of angina:
- Stable angina is the most common type. It happens when the heart is working harder than usual. Stable angina has a regular pattern. Rest and medicines usually help.
- Unstable angina is the most dangerous. It does not follow a pattern and can happen without physical exertion. It does not go away with rest or medicine. It is a sign that you could have a heart attack soon.
- Variant angina is rare. It happens when you are resting. Medicines can help.
Not all chest pain or discomfort is angina. If you have chest pain, you should see your health care provider.
NIH: National Heart, Lung, and Blood Institute
Symptoms, tests and care options
Further reading selected by MedlinePlus. Links open the original organizations’ websites.
- Angina Treatment: Stents, Drugs, Lifestyle Changes -- What's Best? · Mayo Foundation for Medical Education and Research
- Calcium Channel Blockers · Mayo Foundation for Medical Education and Research
- Chest Pain · Mayo Foundation for Medical Education and Research
- Heart Health Tests: MedlinePlus Health Topic · National Library of Medicine
- Nitrates · Texas Heart Institute
- Radionuclide Angiography (MUGA Scan) · American Heart Association
- Troponin Test · National Library of Medicine
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