For example, white or pale nails could signal anemia, liver disease, heart failure or malnutrition. Yellow nails could indicate fungal infections, diabetes or thyroid disease. While vertical ...

First, you can pay closer attention to the appearance of your nails when you cut them for any clues of an internal health problem, Dr. Mona Sadeghpour, a dermatologist in Pennsylvania, tells Fortune.

If your nails are brittle, thin and easily breakable ... such as thyroid disease and iron deficiency anemia. With that being ...

Brittle nails are typically thin, weak, and fragile ... problems are due to an underlying condition like iron deficiency anemia. Brittle nails are a common problem associated with aging.