you develop unexplained or repeated horizontal grooves, see a healthcare professional to determine the underlying cause.
3. Spoon-Shaped Nails: Possible Iron Deficiency
What it looks like: Nails that become thin and concave, curving inward like a spoon. This condition is known as koilonychia.
What it might mean: Koilonychia can be associated with iron deficiency, including iron-deficiency anemia. However, it can also have other causes.
What to do: Do not start high-dose iron supplements without medical advice. A healthcare professional can perform blood tests to determine whether you have iron deficiency
