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Heart Murmur


A heart murmur is a sound heard between your heartbeats. A murmur may sound like a swish or whoosh noise. Heart murmurs may be soft or loud. Heart murmurs are common and are usually harmless.


Call 911 for any of the following:

  • You have chest pain.
  • You have trouble breathing.

Return to the emergency department if:

  • You feel dizzy, lightheaded, or faint.
  • Your child has chest pain with exercise.
  • Your fingertips or lips are pale or blue.
  • You have palpitations, or a fast heartbeat.
  • You have sudden swelling in your limbs or weight gain.

Contact your healthcare provider if:

  • Your child has a poor appetite or will not eat.
  • You have a fever.
  • You have shortness of breath with activity.
  • You sweat heavily with little or no activity.
  • You have questions or concerns about your condition or care.

Follow up with your healthcare provider as directed:

You may be referred to a cardiologist. Write down your questions so you remember to ask them during your visits.

Return to your usual activities as directed:

You may be able to return to sports or other usual activities. Ask your healthcare provider if you have any restrictions.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Learn more about Heart Murmur (Aftercare Instructions)

Associated drugs

IBM Watson Micromedex

Symptoms and treatments Guides (External)

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.