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2. Causes of an enlarged heart

Several conditions can lead to cardiomegaly. The most common are high blood pressure, coronary artery disease (CAD), and past heart attacks. Valve problems and inherited heart disorders also contribute. Other causes include heart muscle disease (cardiomyopathy), thyroid imbalances, pulmonary hypertension, and chronic illnesses like kidney disease or diabetes. Lifestyle factors—such as long-term alcohol use or certain infections—can also play a role.

Human heart anatomy

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.