does a heart murmur usually heal on its on?

Answer 1

YES & NO.
In some new born child they may have murmurs due to congenital (inborn) defects. In a significant proportion the defects are not severe and are corrected as the child grows up. In these cases the murmur gradually disappears confirming that the defect has been corrected. We need specialised tests eg. echocardiography etc. for follow up.

When the murmur is caused by a damage to the heart valves by an acquired disease eg. rheumatic heart disease etc.,these murmurs never disappear though they do not per se necessarily reflect the severity of the condition. Again careful follow up and medical management is mandatory.

A relatively rare condition is the physiological murmur that one hears in cases of eg. anaemia. Once the anaemia is corrected the murmur disappears.

Hope this answers your question.

Answer 2

A murmur is just a sound. The important thing is what causes the sound. It may just be due to a temporary alteration in the circulation, and will go away. In some cases, it's due to a physical abnormality such as a mal-formed valve, which will be permanent, though the murmur may not be heard all the time. It isn't the murmur that's important, though: it's what causes the murmur.

Answer 3

No it doesn't. Most heart murmurs are benign and don't need treatment.