Understanding Your Child’s Heart Murmur — A Parent’s Guide

One of the most common moments in my clinic is the worried parent who has just been told their child has a heart murmur. The word sounds alarming — but in most cases, it is not.

What is a heart murmur?

A murmur is simply an extra sound heard between the normal heartbeats — the sound of blood moving through the heart. Imagine water flowing through a pipe: most of the time it flows quietly, but sometimes you hear it. The same happens in a healthy heart, especially in children, whose chests are small and hearts are close to the stethoscope.

Innocent vs. concerning murmurs

More than half of all children have an innocent (harmless) murmur at some point. These murmurs are soft, change with position, and occur in a heart that is completely normal. They need no treatment, no restriction, and often fade with age.

A smaller number of murmurs are pathological — caused by a structural problem such as a hole in the heart (VSD or ASD), a narrowed valve, or another defect. That is why a murmur that is loud, constant, or associated with symptoms like poor feeding, breathlessness, or poor weight gain should always be evaluated.

What happens during an evaluation?

The evaluation is gentle and non-invasive: a careful examination, an ECG, and usually an echocardiogram (a harmless ultrasound of the heart). Most families leave the same day with a clear answer and a written plan.

When to book an appointment

• Your pediatrician heard a murmur and suggested a check
• The murmur comes with symptoms — fast breathing, poor feeding, blue lips, fainting
• There is a family history of heart disease in young relatives

When in doubt, a single consultation can put your mind at ease — and that, more than anything, is what this clinic is for.

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