Q. What are the common causes of heart murmurs?
Doctor Answer is medically reviewed by SecondMedic medical review team.
Certainly, let's dive into the common causes of heart murmurs. A heart murmur is essentially an abnormal sound heard during your heartbeat, and it can result from various factors. Here are the key causes:
1. Valvular Issues: Often, heart murmurs are linked to problems with heart valves. These valves, like the mitral or aortic valves, control the flow of blood within the heart. Conditions such as valve stenosis (narrowing) or regurgitation (leakage) can lead to murmurs.
2. Structural Abnormalities: Congenital heart defects, which are present at birth, can cause murmurs. These defects might involve holes in the heart walls or abnormal blood vessels.
3. Fever and Infection: Infections, particularly in the lining of the heart (endocarditis), can result in murmurs. High fever can also lead to a condition called "innocent" or "functional" murmur, which usually resolves on its own.
4. Anemia: Low levels of red blood cells (anemia) can lead to a heart murmur as the heart compensates for the decreased oxygen-carrying capacity of the blood.
5. Rapid Blood Flow: Sometimes, increased blood flow through the heart and blood vessels, like during pregnancy or high thyroid activity, can cause functional murmurs.
6. Age: As we age, changes in the heart's structure can also lead to heart murmurs. These are often innocent murmurs and not typically associated with underlying health issues.
7. Medications and Stimulants: Certain medications and stimulants, like amphetamines, can create murmurs due to their effects on heart function.
Remember, not all heart murmurs are a cause for concern. Innocent murmurs, often heard in children, may not require treatment. However, it's crucial to have any new or unexplained heart murmur evaluated by a healthcare provider to determine the underlying cause and necessary steps for management or treatment. Your heart's health is nothing to take lightly.
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