A small diagonal crease in the earlobe — running from the ear canal down to the lower edge — is known as Frank’s sign.
It was first described in 1973 by Dr. Sanders T. Frank, who noticed a possible connection between this crease and coronary artery disease.
❤️ What Does the Research Suggest?
Some studies have found an association between a diagonal earlobe crease and an increased risk of atherosclerosis (narrowing of the arteries).
Experts from the American Heart Association explain that while traditional risk factors like high blood pressure, high cholesterol, smoking, and diabetes are far more important predictors, certain physical signs may sometimes reflect vascular aging.
The theory is that:
• Small blood vessel changes affect the earlobe
• Loss of skin elasticity mirrors arterial stiffness
• Microvascular damage may show externally
⚠️ Important: It’s Not a Diagnosis
Having a diagonal ear crease does not mean you have heart disease.
Many people with Frank’s sign are perfectly healthy.
Many people with heart disease do not have the crease.
Doctors do not diagnose heart disease based on this sign alone.
🩺 When Should You Pay Attention?
Consider discussing heart screening with your doctor if you have:
• Chest discomfort
• Shortness of breath
• High blood pressure
• Diabetes
• Family history of heart disease
• Smoking history
💡 The Bottom Line
Frank’s sign is an interesting physical clue, but it’s only one small piece of a much bigger picture.
The most powerful protection for your heart remains:
✔ Regular checkups
✔ Healthy eating
✔ Physical activity
✔ Blood pressure and cholesterol control
A tiny crease on your ear may raise curiosity — but your lifestyle choices matter much more.
