Heart Murmurs in Dogs and Cats

A heart murmur is an abnormal sound that is usually heard with a stethoscope during an examination of your pet by your veterinarian.

Typically, the normal heart makes a characteristic "lub-dub" sound as the heart beats. When a heart murmur is present, there will be an abnormal whooshing or swishing noise made during the course of the beat, rather than a crisp "lub-dub" sound. Heart murmurs may be present at birth or develop over time.

Learn more about: cat heart murmurs and dog heart murmurs.

Photo: Dog and Stethoscope © Oleksandr Bilozerov | Dreamstime.com

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