Conditions + Treatments

Heart murmur in children

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A heart murmur is an extra or unusual sound heard during a heartbeat. Murmurs range from quite faint to very loud.

  • There are two types of heart murmurs: innocent (harmless) and abnormal.
  • People who have innocent heart murmurs have normal hearts. They usually have no other signs or symptoms of heart problems.
  • People who have abnormal murmurs may have other signs or symptoms of heart problems. Most abnormal murmurs in children are due to congenital (present at birth) heart defects.
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