Frank’s Sign and Heart Disease: What Earlobe Creases May Mean

Diagonal creases in the earlobe—commonly referred to as Frank’s sign—have sparked ongoing medical interest for decades. While these physical features may seem minor, research continues to probe their possible connection to coronary artery disease (CAD) and broader cardiovascular risk.

What Are Ear Creases?

Ear creases refer to permanent, visible lines in different regions of the ear. The most discussed among clinicians is the diagonal earlobe crease (DELC). This appears as a linear, angled indentation that runs from the lower ear canal toward the edge of the earlobe, often at roughly a 45-degree angle. DELC is sometimes termed Frank’s sign, named for Dr. Sanders T. Frank, who first described the phenomenon in a medical journal in 1973 when he observed it among younger patients with heart disease.

• Diagonal earlobe crease (DELC): The classic Frank’s sign; a deep, diagonal crease across the earlobe.
• Preauricular vertical creases: Creases appearing just in front of the ear canal.
• Paired ear creases of the helix: Creases at the upper rim of the ear, sometimes seen in pairs.

Although DELC is permanent and should not be confused with temporary skin folds that result from pressure or sleeping position, it has drawn particular attention in the context of heart health and metabolic disorders.

The Origins of Frank’s Sign

Dr. Sanders T. Frank first brought medical attention to the diagonal earlobe crease in a 1973 article published in the New England Journal of Medicine. He observed this mark in several patients under 60 years old who experienced angina and were found to have significant coronary artery blockages. Soon after, more case reports and studies found similar associations worldwide, from public figures like Steven Spielberg and George W. Bush to the ancient Roman Emperor Hadrian—whose statues often depict the crease and who reportedly died of heart failure.

Is There a Link Between Ear Creases and Heart Disease?

The hypothesis that a diagonal earlobe crease could predict heart health problems has prompted numerous studies worldwide. The main questions include:

• Do people with DELC have a higher risk of coronary artery disease?
• Is the link due to age, since older people are more likely to have both creases and heart issues?
• Could genetics or underlying metabolic changes explain the association?

Findings overall suggest an association does exist, especially in adults under 60, although causation remains unproven. DELC has been tied to not just heart attacks but also:

• Coronary artery disease (CAD)
• Stroke (ischemic cerebrovascular events)
• Type 2 diabetes and other metabolic syndromes

One theory suggests that because both the earlobes and the heart’s coronary arteries are supplied by so-called end arteries, any reduction in blood flow—due to age or atherosclerosis—could cause visible tissue changes in both places. In other words, a visible line in the lobe might be a marker for invisible arterial disease.

The Science Behind the Association: Pathophysiology

Studies have proposed several mechanisms that might explain why a DELC and cardiovascular disease develop together:

• Microvascular Disease: DELC may be due to weakening of elastic fibers in the earlobe from compromised small blood vessels—a process potentially mirrored in the coronary arteries.
• Age-Related Changes: Both DELC and heart disease risk increase with age, though associations have been reported independent of age.
• Genetic Factors: Research across varied ethnic populations suggests inherited factors may play a role.
• Systemic Atherosclerosis: Studies link DELC with more generalized changes in arterial walls, not just the heart, such as increased carotid-artery thickness—a known marker of atherosclerosis throughout the body.
• Visceral Adiposity: Some researchers propose that the increase of fat in facial and ear tissues (an indicator of whole-body metabolic changes) may contribute to creasing and coincide with other metabolic risk factors.

Even with these hypotheses, definitive cause-and-effect hasn’t been established. The presence of DELC can occur with or without cardiovascular disease, and some with severe heart disease don’t develop an ear crease.

Key Studies on Ear Creases and Heart Disease

A growing body of observational studies and case reports provides nuanced insights:

• A 2016 study suggested DELC was independently associated with a higher risk of coronary artery disease, even after accounting for traditional risk factors like smoking and high blood pressure.
• A 2017 paper found that DELC might also predict stroke and transient ischemic attacks, especially in people who already have other cardiovascular risk factors.
• Other research ties DELC to an increased risk of adverse cardiac events among patients with known heart disease, not just healthy subjects.

How Does an Ear Crease Look?

Frank’s sign is not subtle. It’s a deep, diagonal crease that typically extends from the lower opening of the ear canal through the earlobe toward its outer base. The crease is permanent, seen in both relaxed and tensed states, and may appear on just one or both ears. Its depth and severity can vary, with some research noting that heavier, deeper creases correspond with higher cardiovascular risk.

• Usually forms a clear, straight or slightly curved line
• Can be unilateral (one ear) or bilateral (both ears)
• Sometimes mistaken for wrinkles from sleeping position, but DELC does not disappear throughout the day

Other Health Conditions Linked to Ear Creases

Besides heart disease, researchers have identified additional possible connections between DELC and:

• Stroke: Some studies report a higher incidence of ischemic strokes in individuals with DELC.
• Diabetes and Metabolic Syndrome: There is emerging evidence for an association with insulin resistance and overall metabolic health.
• Arterial Thickness: Increased thickness of major arteries in the neck (carotid arteries) has been measured in those with DELC, suggesting generalized vascular changes.

Preauricular and helix creases, though less extensively studied, have also been loosely correlated with metabolic and vascular disorders.

Risk Factors for Developing Ear Creases

Although not everyone with cardiovascular risk factors will develop ear creases, the following are more frequently observed in those with DELC:

• Increased age
• Male gender
• Smoking status
• Type 2 diabetes
• High blood pressure (hypertension)
• Family history of heart disease
• Obesity and metabolic syndrome

Limitations and Scientific Controversy

Despite mounting observations, medical consensus stops short of labeling DELC as a definitive predictor for heart disease. Here’s why:

• Up to a quarter of older healthy adults have DELC with no apparent heart disease.
• Some individuals with clear cardiovascular disease never display the crease.
• DELC can correspond to normal skin changes from aging, especially among certain ethnicities.
• Current evidence is largely observational; DELC is not included in any official CAD risk scoring systems or guidelines.

Ultimately, most experts recommend using DELC as a point of curiosity or further investigation, not as a sole diagnostic criterion. Factors such as family history, lifestyle, cholesterol, and blood pressure remain far more important in guiding preventative care and diagnostic testing.

Evaluating Your Risk: Next Steps

• Don’t panic if you notice a diagonal earlobe crease. For many, DELC is a benign age-related finding.
• If DELC is seen in younger people or those with other risk factors (diabetes, smoking, family history), it might prompt a patient and their healthcare provider to review overall cardiovascular health more closely.
• No medical societies recommend routine heart screening based solely on the presence of DELC—but it may be a useful flag in a broader health assessment.
• Focus on universally proven ways to reduce cardiovascular risk: stopping smoking, reducing blood pressure and cholesterol, managing diabetes, eating a heart-healthy diet, and maintaining physical activity.

When Should You See a Doctor?

Most people do not need to seek care simply for noticing an ear crease. However, consult a healthcare professional if you:

• Have a DELC and other risk factors for heart disease
• Experience chest pain, shortness of breath, dizziness, or unusual fatigue
• Have a strong family history of cardiovascular disease or stroke
• Notice new, persistent, or deepening ear creases at a younger age

The doctor might review your medical history, assess underlying risk factors, and determine if further cardiovascular testing (like an ECG or cardiac imaging) is appropriate.

Frequently Asked Questions

Q: Are earlobe creases a reliable sign of heart disease?

A: Earlobe creases, or Frank’s sign, are associated with a higher risk of cardiovascular disease in several population studies. However, they are not definitive signs, and many healthy people have creases with no underlying heart issues.

Q: Can young people with no risk factors get ear creases?

A: Ear creases can appear at any age but are more common as people get older. In younger individuals, their presence might warrant a closer look at hidden risk factors but is not a sure sign of disease.

Q: Is there anything I can do to prevent ear creases?

A: No proven method exists to prevent DELC. Standard measures for heart health—diet, exercise, regular checkups—are much more impactful for preventing heart disease than focusing on ear creases alone.

Q: If I have an ear crease, should I get my heart checked?

A: If you have a DELC and also have known risk factors (such as family history, diabetes, or high cholesterol), it is reasonable to discuss with your doctor whether a heart checkup is appropriate.

Q: Is DELC different from ordinary ear wrinkles?

A: DELC is a permanent, diagonal crease not caused by temporary pressure or sleeping position. It is different from age-related wrinkles that may fade or change over time.

Takeaway

Diagonal earlobe creases, or Frank’s sign, may be associated with an increased risk of cardiovascular disease, though the precise relationship is still debated. Their presence should not be ignored—especially in the context of other risk factors—but they are not a replacement for established risk assessments or professional medical advice. Talk to your doctor if you worry about your heart health or notice new changes in your body.