Do Nail Size and Shape Indicate Lung or Heart Disease?Medical Truth, Myths, and Scientific ExplanationIntroductionMany people believe that a person with small nails is prone to lung problems, while a person with big nails is prone to heart problems, and that such individuals may fall ill even with a slight cause.This belief is widely circulated in traditional conversations and on social media.
Do Nail Size and Shape Indicate Lung or Heart Disease? Medical Truth, Myths, and Scientific Explanation Introduction Many people believe that a person with small nails is prone to lung problems, while a person with big nails is prone to heart problems, and that such individuals may fall ill even with a slight cause. This belief is widely circulated in traditional conversations and on social media. But is it really true? The answer is partly misunderstood and mostly exaggerated. Nails can indeed reflect internal health conditions, but nail size alone is not a reliable indicator of lung or heart disease. Medical science looks at specific nail changes, not simple size differences. This blog explains the scientific truth, separates myths from facts, and helps you understand when nail changes matter and when they do not. Understanding Nails from a Medical Perspective Human nails are made of keratin, a strong protein. Nail appearance depends on: Blood circulation Oxygen supply Nu...