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What Are the Signs and Symptoms of a Heart Murmur?

People who have innocent (harmless) heart murmurs don't have any signs or symptoms other than the murmur itself. This is because innocent heart murmurs aren't caused by heart problems.

People who have abnormal heart murmurs may have signs or symptoms of the heart problems causing the murmurs. These signs and symptoms may include:

  • Poor eating and failure to grow normally (in infants)
  • Shortness of breath, which may occur only with physical exertion
  • Excessive sweating with minimal or no exertion
  • Chest pain
  • Dizziness or fainting
  • A bluish color on the skin, especially on the fingertips and lips
  • Chronic cough
  • Swelling or sudden weight gain
  • Enlarged liver
  • Enlarged neck veins

Signs and symptoms depend on the problem causing the heart murmur and its severity.

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Last Updated: September 20, 2012