
Common Causes
Overview
- Normal heart sounds. The doctor listens to your heart at different places on your chest to hear the sounds your heart valves make as blood travels through your heart.
- Heart murmur. A heart murmur is a swishing sound heard when there is turbulent or abnormal blood flow across the heart valve.
- Innocent murmurs. ...
Related Conditions
Valvular heart disease is the most common cause of a heart murmur. Valve stenosis – a narrow, tight, stiff valve, limiting forward flow of blood. Valve regurgitation – a valve that does not close completely, allowing backward flow (a "leaky" valve). The abnormal changes to the valve cause the abnormal heart sound (murmur).
How do you get a heart murmur?
An EKG will not show a murmer, however it may show something else which would be the reason for the murmur in the first place. As much as I can appreciate ed's response to you, just because there is a murmur that does not mean there is always a valve inefficiency going on. Murmurs can be "Functional" which means there is nothing structurally ...
What causes a heart murmur?
- Workout
- Pregnancy
- Fever
- Inadequate oxygen delivery to body tissues due to a lack of healthy red blood cells (anemia)
- There is an excessive amount of thyroid hormone in your body (hyperthyroidism)
- Adolescence and other periods of fast growth
Will EKG show a heart murmur?
What can cause heart murmurs?

What does a cardiac murmur indicate?
A heart murmur is an extra noise heard during a heartbeat. The noise is caused when blood does not flow smoothly through the heart. Heart murmurs can be innocent (harmless) or abnormal (caused by a heart problem). Some causes are fever, anemia, or heart valve disease.
Should you worry about a heart murmur?
An innocent heart murmur doesn't need any treatment. If a heart problem or other condition is causing the murmur, that problem will need to be treated. These types of conditions are usually treated with medicine. Severe cases could require surgery.
How do you fix a heart murmur?
Surgery or other procedures Surgery may be needed to correct a condition that causes a worrisome heart murmur. For example, if a narrowed or leaky heart valve is causing the murmur and other symptoms, heart valve repair or replacement may be needed. During heart valve repair, a surgeon might: Patch holes in a valve.
What are the 3 kinds of murmurs of the heart?
Types of murmurs include the following:Systolic murmur. A heart murmur that occurs during a heart muscle contraction. ... Diastolic murmur. A heart murmur that occurs during heart muscle relaxation between beats. ... Continuous murmur. A heart murmur that occurs throughout the cardiac cycle.
How do I know if my heart murmur is serious?
If you have been told you have a heart murmur and you think you have symptoms of heart valve disease, you should: Talk to your doctor and ask if you should see a cardiologist, especially if you've had shortness of breath, palpitations or chest pain. See a cardiologist.
What should you avoid if you have a heart murmur?
Eat heart-healthy foods such as fruits, vegetables, whole grains, fish, lean meats, and low-fat or non-fat dairy foods. Limit sodium, sugars, and alcohol. If your doctor recommends it, get more exercise.
What is the most common cause of a heart murmur?
In adults, worrisome heart murmurs are usually due to heart valve problems that develop later in life (acquired heart valve disease). Things that can damage the heart valves include: Calcium deposits.
Does a heart murmur make you tired?
People with an abnormal heart murmur may have symptoms of the problem causing the murmur. Symptoms can include: Feeling weak or tired. Shortness of breath, especially with exercise.
Do heart murmurs get worse with age?
Likewise, murmurs can get worse if a condition goes untreated or becomes more serious. Your heart is unique, and some heart murmurs can change over time.
What are two possible causes for heart murmurs?
CausesFlow murmurs: Exercise, pregnancy, and anemia can all cause a high blood flow, as can hyperthyroidism, fever, and rapid growth spurts. ... Valve disease-related murmurs: Problems with a valve in the heart, such as aortic stenosis or a bicuspid aortic valve, can lead to a heart murmur.More items...
Can stress cause a heart murmur?
But can it cause a heart murmur? Although typically not listed as a cause, according to the Better Health Channel, emotional stress can increase blood flow and interfere with the force of your heartbeat. And this can potentially cause a physiologic heart murmur.
What age do heart murmurs occur?
According to the AAP, heart murmurs are a concern when they occur very early at birth or during the first 6 months of life. These murmurs, common in premature babies, are not innocent, and most likely will require the attention of a pediatric cardiologist immediately.
What is the aortic valve in the heart?
The aortic valve is one of four valves that control blood flow in the heart. It separates the lower left heart chamber (left ventricle) and the body's main artery (aorta).
What is echocardiogram used to diagnose?
An echocardiogram can help your doctor diagnose heart conditions. An echocardiogram uses sound waves to produce images of your heart. This common test allows your doctor to see your heart beating and pumping blood. Your doctor can use the images from an echocardiogram to identify heart disease.
What is a normal ejection fraction by age?
An ejection fraction range between 41 and 51 percent for men and between 41 and 53 percent for women is classified as mildly reduced....What do ejection fraction results mean?LVEF rangeMenWomenNormal range52–72%54–74%Mildly abnormal range41–51%41–53%Moderately abnormal range30–40%30–40%1 more row
What is a good ejection fraction for the left ventricle?
The left ventricle is the heart's main pumping chamber. It pumps oxygen-rich blood up into your body's main artery (aorta) to the rest of the body. A normal ejection fraction is about 50% to 75%, according to the American Heart Association. A borderline ejection fraction can range between 41% and 50%.
What is the sound of a heart murmur?
Heart murmur. A heart murmur is a swishing sound heard when there is turbulent or abnormal blood flow across the heart valve.
Can a murmur be present without a heart condition?
Murmurs can be present without any medical or heart conditions. Two common examples include:
What does it mean when you hear a murmur?
When to Call Your Doctor. The "murmur" is the sound of blood flowing. It may be passing through an abnormal heart valve, for instance. Or it may be that a condition makes your heart beat faster and forces your heart to handle more blood quicker than normal.
Why does my heart murmur?
A murmur could also be a problem with a heart valve. The valves close and open to let blood flow through the heart's two upper chambers -- called the atria -- and two lower chambers -- the ventricles. Valve problems include:
What does it mean when your heart valves are narrow?
But it can lead to the blood flowing backward through the valve, which your doctor may call regurgitation. Mitral valve or aortic stenosis: Your mitral and aortic valves are on the left side of your heart. If they narrow, which doctors call stenosis, your heart has to work harder to pump blood to the rest of your body.
What is the sound of the heart when it beats?
A healthy heart makes a "lub-dub" sound as it beats. The "lub" (systolic sound) happens when part of the heart contracts and the mitral and tricuspid valves close, and the "dub" (diastolic sound) occurs when part of the heart relaxes and the aortic and pulmonic valves close. A heart murmur is an extra sound in the heartbeat -- such as a ''whooshing'' -- that is caused by turbulent blood flow through the heart valves.
Why does my heart make a clicking sound?
It stops blood from flowing back into your upper left chamber. If part of that valve balloons out so it doesn't close properly, you have mitral valve prolapse. This causes a clicking sound as your heart beats. It's fairly common and often not serious.
Why do elderly people have heart murmurs?
Aortic sclerosis and stenosis: One in three elderly people have a heart murmur because of the scarring, thickening, or stiffening of their aortic valve. That’s aortic sclerosis. It's usually not dangerous, since the valve can work for years after the murmur starts. It’s sometimes seen in people who have heart disease.
What is the name of the test that measures the electrical activity of the heart?
Electrocardiogram (EKG), which measures the electrical activity of the heart. Chest X-rays to see if the heart is enlarged due to heart or valve disease. Echocardiography, which uses sound waves to map the heart's structure. On further examination, your doctor may find that the heart murmur is innocent.
What causes a murmur in the heart?
Certain congenital defects and other conditions such as pregnancy, fever, anemia or thyrotoxicosis (a condition caused by an overactive thyroid gland) can also cause murmurs. A murmur that occurs when the heart muscle relaxes between beats is called a diastolic murmur.
How loud is a systolic murmur?
Systolic murmurs are graded by intensity (loudness) from 1 to 6. A grade 1 is faint, heard only with a special effort. It's softer than the normal heart sounds. A grade 6 is extremely loud, and can be heard with no contact between stethoscope and the chest.
What is it called when a child's heart rate changes?
These heart murmurs are also called “normal” or “physiological” murmurs. Innocent heart murmurs are so common that most children are likely to have one at some time. Innocent murmurs may disappear and then reappear. When a child’s heart rate changes, such as during excitement or fear, these innocent murmurs may become louder or softer.
What is an innocent heart murmur?
Innocent heart murmurs are sounds made by blood circulating through the heart’s chambers and valves, or through blood vessels near the heart. Innocent murmurs are common in children and are harmless. These heart murmurs are also called “normal” or “physiological” murmurs.
When do murmurs disappear?
Most innocent murmurs disappear when a child reaches adulthood, but in some adults the murmur remains for life.
Can a child have a heart murmur?
With an innocent heart murmur, your child won’t need medication, and doesn't have a heart problem or heart disease. You will not need to restrict your child’s activities or diet. They can lead an active, healthy life! Most innocent murmurs disappear when a child reaches adulthood, but in some adults the murmur remains for life.
Do innocent heart murmurs disappear?
Innocent heart murmurs are so common that most children are likely to have one at some time. Innocent murmurs may disappear and then reappear. When a child’s heart rate changes, such as during excitement or fear, these innocent murmurs may become louder or softer. This still doesn’t signal that the murmur is cause for concern.
What causes a heart murmur?
Heart murmurs may be caused by a number of factors or diseases, including: Defective heart valves. Holes in the walls of your heart (atrial septal defect or ventricular septal defect) Pregnancy (increased blood volume) Fever. Anemia (a decrease in the red cells in the blood)
What is a systolic murmur?
Systolic murmur. This happens during a heart muscle contraction. Systolic murmurs are divided into ejection murmurs (due to blood flow through a narrowed vessel or irregular valve) and regurgitant murmurs (backward blood flow into one of the chambers of the heart). Diastolic murmur.
What are the different types of murmurs?
All murmurs are analyzed for location, pitch, frequency, and duration. They are also graded according to how loud they are (on a scale of 1 to 6 with 1 being very faint and 6 being very loud).
What is an innocent heart murmur?
What are innocent heart murmurs? Innocent heart murmurs are harmless sounds made by the blood circulating normally through the heart's chambers and valves or through blood vessels near the heart. They can be common during infancy and childhood and often disappear by adulthood.
What is a functional murmur?
Some harmless murmurs require additional tests such as an electrocardiogram (ECG) or echocardiogram (echo) to rule out the possibility of a problem.
When do murmurs disappear?
Most innocent murmurs disappear when a child reaches adulthood, but some adults still have them. When a child's heart rate changes, such as during exercise, excitement or fear, the innocent murmur may become louder or softer.
Are innocent heart murmurs normal?
Innocent murmurs are common in healthy infants, children and adolescents. Innocent murmurs also may disappear and then reappear. Read more about childhood heart murmurs.
How to diagnose a heart murmur?
To diagnose the underlying pathology behind a heart murmur, your health care provider can start by simply listening to your heart. A doctor with a skilled ear resulting from training and experience can identify different types of heart murmurs by sound alone. The next step is to use an echocardiogram. This is a non-invasive, pain-free method that ...
What Causes a Heart Murmur?
For pregnant women, a heart murmur is usually a symptom of having a higher volume of blood flow during the pregnancy, something that is completely normal.
What is the next step in a heart ultrasound?
The next step is to use an echocardiogram. This is a non-invasive, pain-free method that is basically taking an ultrasound of the heart that allows doctors to examine the underlying structure.
Is a heart murmur bad?
A heart murmur is a sound often characterized as a “whooshing” or rushing of fluid that can be heard between heartbeats. However, as frightening as this may seem, a heart murmur is not always a bad thing and in many cases is completely normal.
Are Heart Murmurs Dangerous?
A heart murmur is only bad when it is a sign of something else, like a valve problem. (Valves are located between the chambers of the heart and make sure blood is flowing forward in the correct direction.) Common valve problems might be:
What causes a heart murmur?
Heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by heart auscultation, and analyzed by their intensity (6 grades), duration, timing (systolic, diastolic, or continuous), location, transmission, and quality (musical, vibratory, blowing, etc).
What is a postpartum heart murmur?
Clinical Information. A periodic humming or blowing sound heard on auscultation of the heart that can indicate the presence of cardiac disease ; murmurs are the result of vibrations caused by the turbulent flow of blood in the heart or great vessels.
When will the ICD-10-CM R01.1 be released?
The 2022 edition of ICD-10-CM R01.1 became effective on October 1, 2021.
