Mild leaky heart valve seen on an echocardiogram

What the report means

The four valves. The heart has four valves: tricuspid, pulmonary, mitral and aortic. Their flaps open to let blood through and close between beats to stop it flowing backwards. (MedlinePlus)
Grades. Reports grade a leak from trace up to severe. (Framingham 1999) Trace or trivial is the smallest grade; mild is next. Moderate and severe are the grades that UK guidance sends to a specialist. (NICE NG208)
Often no symptoms. Some people with valve disease have no symptoms, and it is sometimes found by chance. (NHS)
Other parts of the report matter too. Whether the valve looks normal in shape and whether the aortic root (the start of the main artery) is a normal size affect whether follow-up is needed. (King 2025, citing BSE)

How common small leaks are

Framingham Heart Study. Of 3,589 adults with an average age of 54, at least mild mitral leak was seen in about 19% and at least mild tricuspid leak in 15% of men and 18% of women. Trace or more aortic leak was seen in 13.0% of men and 8.5% of women. The authors said a substantial share of healthy people have a detectable leak. (Framingham 1999)
OxVALVE, people 65 and older. Echocardiograms of 2,500 people without known valve disease found new, mostly mild, valve findings in 51%. Mild mitral leak was seen in 19.8% and mild aortic leak in 13.6%. Moderate or severe disease was found in 6.4%. (OxVALVE 2016)
Age. In OxVALVE new findings rose from 42.4% at ages 65 to 69 to 76.3% at ages 85 to 95. (OxVALVE 2016) MedlinePlus notes that heart valves can become thick and stiff with age. (MedlinePlus)

When a repeat echo is or is not needed

Mild leak, normal valve. UK echocardiography (BSE) guidance, as cited in a 2025 study, says people with mild aortic or mitral leak, a valve of normal structure and a normal aortic root should be discharged from routine follow-up. (King 2025, citing BSE)
Specialist referral. NICE advises referral to a specialist for moderate or severe valve disease of any type, and for a bicuspid aortic valve at any severity, including mild. (NICE NG208) See screenings if you have a bicuspid aortic valve.
Mild narrowing is different. NICE suggests considering an echo every 3 to 5 years for mild aortic or mitral stenosis (narrowing), which is not the same as a leak. (NICE NG208) Calcium on the aortic valve is covered on aortic valve calcium seen by chance on CT.
New symptoms. The NHS says a GP will listen to your heart if you have symptoms and may arrange an echocardiogram. (NHS)

How it ties to your age-based checks

MedlinePlus lists older age, high blood pressure, high cholesterol, diabetes and heart disease among the conditions that raise the chance of valve disease. (MedlinePlus) In Framingham, high blood pressure was linked to mitral leak. (Framingham 1999) In OxVALVE, people with atrial fibrillation had more valve findings. (OxVALVE 2016) A small leak is a reason to make sure your routine checks are up to date:

A large heart shadow on an X-ray is covered on enlarged heart seen by chance on a chest X-ray.

Who it applies to

Adults told that an echocardiogram done for another reason shows a trace, trivial or mild leak, without symptoms. NICE NG208 covers adults with heart valve disease. (NICE NG208) Children, people with a replaced valve and people with a known heart condition followed by a specialist are outside this page.

NHS, see a GP if: (NHS)

you're feeling short of breath regularly
you feel tired, weak or dizzy when doing normal activities
you have heart palpitations that keep coming back, last longer than a few minutes or are getting worse
you have swollen ankles or feet
you have chest pain that comes and goes

Call 999 (911 in the US) if you're struggling to breathe, have sudden chest pain that spreads to your arms, back, neck or jaw or lasts more than 15 minutes, or have chest pain with shortness of breath or palpitations. (NHS)

Routine age-based screening

A finding on an echocardiogram does not replace the routine screenings for your age. See screenings by age and gender.

Where they differ:

Check-ups for mild disease. The NHS says people with mild valve disease and no symptoms will usually have regular check-ups. (NHS) UK echocardiography guidance, as cited in a 2025 study, says mild aortic or mitral leak with a normal valve and aortic root can be discharged from routine follow-up. (King 2025, citing BSE) NICE sets a repeat echo interval for mild narrowing but not for mild leak. (NICE NG208)
How common is "normal". Framingham counted any trace aortic leak, while OxVALVE counted mild or more on the left side of the heart, so their figures are not directly comparable. (Framingham 1999)(OxVALVE 2016)
Screening the public. The OxVALVE authors found a large burden of undiagnosed valve disease in older people; NICE advises an echocardiogram for adults with a murmur when valve disease is suspected, not for everyone. (OxVALVE 2016)(NICE NG208)

Your doctor decides what your result means for you.

Questions people ask

Is a trace or mild leaky valve normal?

Small leaks are common. In the Framingham study about 1 in 5 adults had at least mild mitral leak. NICE says mild valve disease is common and rarely becomes clinically significant. (Framingham 1999) (NICE NG208)

Do I need another echocardiogram?

Not always. UK echocardiography guidance, as cited in a 2025 study, says people with mild aortic or mitral leak, a normal valve structure and a normal aortic root can be discharged from routine follow-up. Your doctor decides based on the full report. (King 2025, citing BSE)

Does a mild leak get worse with age?

Leaks become more common with age. In OxVALVE, new valve findings rose from 42% of people aged 65 to 69 to 76% of those aged 85 to 95, and most were mild. NICE says mild disease rarely progresses to clinically significant disease. (OxVALVE 2016) (NICE NG208)

Is it linked to blood pressure?

High blood pressure is a listed risk factor for valve disease, and in Framingham it was linked to mitral leak. Keeping up with routine blood pressure checks is part of age-based screening. (MedlinePlus) (Framingham 1999)

What symptoms need a doctor?

The NHS advises seeing a GP for regular breathlessness, tiredness or dizziness with normal activity, palpitations that keep coming back, or swollen ankles, and calling 999 (911 in the US) for sudden chest pain or struggling to breathe. (NHS)