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What can cause heart murmurs?

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Heart murmurs may be caused by blood flowing through a heart valve that's leaky or narrow because of disease. Murmurs can also be caused by increased blood flow across a valve caused by medical conditions like anemia or hyperthyroidism. Heart problems present at birth can also cause heart murmurs. These sometimes can be repaired with surgery.

Sources |

Reviewed by James Beckerman on May 02, 2018

Medically Reviewed on 05/02/2018

SOURCES:

National Heart Lung and Blood Institute: "Explore Heart Murmur."

MedlinePlus: "Heart murmurs and other sounds."

 

Reviewed by James Beckerman on May 02, 2018

SOURCES:

National Heart Lung and Blood Institute: "Explore Heart Murmur."

MedlinePlus: "Heart murmurs and other sounds."

 

Reviewed by James Beckerman on May 02, 2018

From: Heart Murmur Introduction and Symptoms

How common are heart murmurs?

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