Spoon-shaped NailsSpoon-shaped nails (koilonychia) curve upward and can hold a drop of liquid. This abnormality is often associated with iron-deficiency anemia. Iron plays a vital role in carrying oxygen throughout the body, and low levels can impact nail growth and structure. If this condition is observed alongside fatigue or pallor, it’s time to consult a doctor. In rare cases, spoon nails may also be linked to heart disease or hemochromatosis—a disorder where the body absorbs too much iron. Yellow or Thickened ToenailsThick, yellow nails may indicate a fungal infection, but they could also signal conditions like psoriasis or thyroid disease....
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