Hi Helen,

Depends on the type of heart murmur as there are a few different kinds- depending on the valve etc. Some are benign and will never effect the person. Has your son had an echo(echocardiogram), which is an ultrasound of the heart? I'd be asking for one of these if he hasn't.

I have a heart murmur, it was diagnosed when i was 13- and is of the mitral valve (called a mitral valve prolapse/regurgitation). Doesn't really effect me and I get a check up every 3-5 years just to make sure it isn't getting worse.

Some murmurs wil dissappear but others are for life, depends like I said before on the type of murmur.

I guess things to look at for when he is getting older- if he get blue lips or extremeties when it isn't cold or get tired before other kids. Hopefully your son has nothing to worry about and it's just one of those benign murmurs that won't effect him.

HTH