Our feet are often the first place signs of deeper health problems appear. Doctors note that changes in nails, skin, or temperature can point to conditions such as diabetes, heart disease, thyroid disorders, poor circulation, or anemia. Spoon-shaped nails may signal iron deficiency, thick or yellow nails can indicate fungal infection or systemic illness, and dark streaks under a nail should be checked to rule out serious skin cancer. Ongoing skin changes or chronically cold feet may also suggest circulation issues like peripheral artery disease. Paying attention to these warning signs and seeking medical advice early can help uncover and address underlying health concerns.
