08/01/2026
💙 Heart Murmurs in Children — What Parents Should Know 💙
Hearing that your child has a heart murmur can feel frightening — but in many cases, it doesn’t have to be. Let’s break it down in a simple and reassuring way.
❓ What is a heart murmur?
A heart murmur is a whooshing or swishing sound heard during a heartbeat. It’s caused by turbulent blood flow in the heart or blood vessels.
It is a sound, not a diagnosis by itself.
🌟 Most murmurs are harmless
In fact, innocent (physiological) murmurs are extremely common in children:
• related to rapid blood flow
• loudest during fever, anemia, or growth spurts
• often disappear by adolescence
These murmurs do not affect a child’s health, activity, or development.
⚠️ When can a murmur be a sign of a problem?
Pathological murmurs are less common, but may indicate:
• congenital heart defects
• valve abnormalities
• heart muscle or vessel issues
Your pediatrician will determine if further evaluation is needed based on the sound, timing, and associated symptoms.
🩺 When to investigate?
A child should be referred for further testing if a murmur is accompanied by:
• poor feeding or fatigue
• bluish lips or fingertips
• shortness of breath
• difficulty gaining weight
• fainting or dizziness
🔎 What tests can be done?
If necessary, your child may be referred for:
Echocardiography (heart ultrasound) — the most important, painless test that shows heart structure and blood flow.
Sometimes an ECG or chest X-ray may be added, depending on symptoms.
💬 Most murmurs in children are harmless — but it’s always good to check when something seems unusual. Pediatricians listen carefully for a reason!
Yours,
Dr Aleksandra 🦋