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What is an abnormal heart murmur?

An abnormal, or pathologic, heart murmur is heard in infants and children who have an abnormal structure in the heart or vessels of the lungs or body. They can be caused by narrow or leaky valves, some holes in the walls between the heart chambers, narrowed arteries in the lungs or body, or other areas that keep blood from flowing smoothly out of the heart.

Continue Learning about Heart Murmur

Can a child outgrow a normal heart murmur?
Mark Sklansky, MDMark Sklansky, MD
Most normal heart murmurs in childhood are outgrown/disappear by the time children pass through adol...
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What tests help detect an abnormal heart murmur?
SCAISCAI
Evidence of an abnormal heart murmur can be detected with several tests, and the results help confir...
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What is a heart murmur?
National Athletic Trainers' AssociationNational Athletic Trainers' Association
A heart murmur is an abnormal sound that is heard through the stethoscope. It does not always indica...
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What causes a heart murmur?
Andrea C. Bryan, MDAndrea C. Bryan, MD
Heart murmurs are abnormal heart sounds, usually characterized by “whooshing or swishing.” These sou...
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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.