What is the cause of a heart murmur in a child who is normal?

Innocent murmur. A heart murmur in a healthy, normal child is often and innocent "flow" murmur... Essentially, we heart the blood flow across normal heart structures.
Innocent murmur. Is is fairly common in normal children for a "murmur', or noise, to be heard which is simply the normal blood flow. A murmur does not always mean heart disease. An innocent murmur is nothing to be concerned about.
Extra noise. A murmur is simply any noise other that the expected lub dup variations of the heart beating.Kids have a variety of innocent murmurs that can reflect the dynamic activity of the heart, the flow of blood back to the heart from the head, a vibratory sound as blood flows in main vessels to the lungs & others.The lean chest wall also permits hearing sounds that will be muffled when muscle mass develops.
Normal vibrations. As the heart contracts and blood flows through it, there are structures in the heart, potentially including valves, chords that hold the valves in place, and muscle bundles, that vibrate and cause sounds that can be heart with a stethoscope. These sounds are normal.

Related Questions

What causes a heart murmur? I was diagnosed with a heart murmur as a child. Should I be worried as an adult? What causes heart murmurs and are there any symptoms to look for?

A . A murmur is simply a sound coming from the heart.. It could mean nothing or be very serious and require treatment and follow -up. See a cardiologist and get an echocadiogram with doppler of your heart ..This will tell the story. And you will know exactly what you need to do if anything. Don't wait ! Read more...
Heart . Heart murmur is a sound heard with a stethoscope that generally represents turbulence from within the heart, usually turbulence from the blood passing over the valves and sometimes other reasons such as tortuous vessels. Murmurs can be innocent or physiologic particularly in young persons because their hearts are super healthy and contract with more force than an adult heart creating a physiologic turbulence across the valves. This is why childhood murmurs do not always equate to heart disease. However there are a number of childhood heart problems, usually congenital or due to rheumatic fever, that do represent cardiac pathology. Get your childhood records or speak to the childhood doctor and see a current physician to see if you have a heart murmur at present and have them review your childhood health records with you and consider a current test of your heart particularly an echocardiogram. Read more...
Many causes. A murmur simply means that someone listening can hear blood flow. A murmur is not a thing in itself. Many people with normal hearts have murmurs. But on the other hand, murmurs can also be caused by abnormalities in the heart (e.g. holes, valves not working appropriately). Please discuss your specific case with your doctor; further testing may or may not be needed. Read more...

Is it normal to detect a heart murmur until now that my kid is 4 yrs old. Never got found when she was a baby.

Common finding. If i listen to a kid often enough i will eventually hear a murmur.It is more likely to be an innocent one than one meaning something bad. Even significant murmurs are not always evident at birth but may be detected at 2-4 months of age or older, since the pressures within the heart shift from pre to post birth work. Read more...

Can mvp with heart murmur cause palpitations w/ SOB? It only last for a second. Should I give my heart dr. A call or is it normal.?

It is ok. MVP can cause Palpitation. as a rule any heart symptoms which lasts less than 30 seconds are not emergency and are benign symptoms. Anxiety makes all the symptoms worse so try to take deep breath. It increases Vagal tone and helps Slow down the HR. it also hel your Anxiety. Read more...

8mo baby, slight heart murmur, just noticed swelling in both legs below knee. Legs feel hard. Baby seems fine. What might cause this? Dangerous?

Call pediatrician . That sounds worrisome to me. You should at least call your pediatrician. . Read more...
Medical exam needed. Many infants have mild heart murmurs that are of no concern. However, the firm swelling you describe is concerning. It's not likely related to the heart murmur, since heart failure in infants doesn't usually cause leg swelling, but rather poor feeding, lethargy and breathing trouble. But leg swelling should be evaluated as soon as possible. Read more...

At what age can I expect my child to outgrow his "innocent" heart murmur?

Doesn't matter. It can be months, years, or occasionally never. Since it is "innocent" you (and as they grow older, your child) need to tell new doctors about the murmur, and the fact it has been evaluated and found to be harmless. And live a normal, heart healthy lifestyle! Read more...

What is the relationship of a heart murmur to a hole in the heart in a child?

A heart murmur... ....Is an extra sound the heart makes, nothing more. Sometimes it means something is wrong (like a hole), and other times it does not. Children may have meaningless, "benign" heart murmurs with fever, dehydration, or at different ages. A hole in the heart is one of many possible causes of a murmur. It might be a tiny hole that closes on it's own, or it might be one that needs to be fixed. Read more...