Your feet carry you everywhere, but they can also warn you when something serious is wrong. Strange changes in your toes, nails, or skin may seem harmless at first, yet they can be early markers of life-threatening diseases. Ignoring these signs can delay diagnosis and make treatment harder. A review and clinical papers by PMC show that nail and skin findings can point to systemic disease. For example, splinter hemorrhages and other nail bed changes have been linked to infections such as infective endocarditis and to vasculitides and other systemic problems. See a clinical review of splinter hemorrhages and their causes for more detail. This means that unusual foot problems are not just cosmetic. They can signal hidden killers such as diabetes, kidney failure, peripheral arter
Lesser-known foot symptoms that may signal deadly diseases

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