A heart murmur is not a disease, but an extra whooshing or swishing sound the heart makes in addition to the normal heart beats. Murmurs are very common in childhood.
Sometimes, a murmur can mean there is an issue with how the heart is built. For many kids, however, murmurs are benign (not serious) and are associated with a normal heart.
In most cases, the murmur is the result of blood flowing in and out of the heart. These are called innocent, benign or functional murmurs. Pathologic murmurs are caused by blood flowing through abnormal heart structures.
Your child should see a doctor if she/he has a heart murmur AND shows any of these symptoms:
Rev.6/2018. Mass General for Children and Massachusetts General Hospital do not endorse any of the brands listed on this handout. This handout is intended to provide health information so that you can be better informed. It is not a substitute for medical advice and should not be used to treatment of any medical conditions.