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How do other illnesses affect unstable angina?

Unstable angina is often caused by coronary artery disease. High blood pressure increases the risk of coronary artery disease and angina because it can harm arteries. People who experience chronic stable angina may have increased risk of unstable angina. Diabetes also increases the risk of coronary artery disease. High cholesterol may lead to narrowing of the arteries that allow blood to flow to the heart, increasing the risk of angina.

Severe anemia, in which there are not enough red blood cells to carry adequate oxygen to the body, can also result in unstable angina.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.