Your Toenails Know More Than You Do: The Hidden Health Clues Below the Surface

White spots, streaks, or patches on the nail, known as leukonychia, have several causes. The most frequent cause is minor trauma or injury to the nail base. However, if the entire nail appears white and is soft and powdery on the surface, it could be a type of superficial fungal infection. Furthermore, horizontal white lines spanning the entire width of the nail (Mee's lines) can signal systemic poisoning or serious liver/kidney disease.