The main sign of heart valve disease is an unusual heartbeat sound called a heart murmur. Your doctor can hear a heart murmur with a stethoscope.
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As the child gets older, abnormal signs and symptoms may appear, including fatigue, a heart murmur (an extra heart sound when a doctor listens with a stethoscope), or, rarely
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But many people have heart murmurs without having a problem. Heart tests can show if you have a heart valve disease.
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