Benign heart murmurs are caused by:
- Turbulent blood flow through a highly dynamic but normal circulatory system
Slight valvular abnormality with no long-term consequences (such as
mitral valve prolapse
, a congenital condition)
Abnormal heart murmurs can be due to:
Structural abnormalities of the heart valve (most common):
Structural abnormality of the heart muscle:
Abnormal holes in the structure of the heart persisting after birth:
—infection of the inner lining of heart valves and chambers (endocardium)
—inflammation of the saclike membrane that encloses the heart (pericardium). This may be caused by:
- Cardiac myxoma—a benign soft tumor within the heart (rare)
A risk factor is something that increases your chance of getting a disease or condition.
Risk factors for normal heart murmurs include:
- Age: 3-7 years old
Risk factors for abnormal heart murmurs include:
- Rheumatic fever
- High blood pressure
- Autoimmune disease
- Congenital heart defects or disease
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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