What is a common cause of nail discoloration?

Nail discoloration often results from fungal infections or exposure to certain chemicals. Fungal infections can lead to changes in nail color, texture, and thickness, typically causing nails to appear yellow or greenish as the fungus grows within the nail bed. Similarly, contact with harsh chemicals found in cleaning products or nail care products may cause nails to become discolored. These chemical exposures can change the nail's pigment or lead to conditions that alter its appearance.

While genetic mutations, excessive nail polish use, and vitamin deficiencies can also affect nail health, they are less common causes of straightforward discoloration compared to the straightforward effects of infections and chemical exposure. Understanding these causes helps in identifying appropriate treatments and preventive measures for maintaining healthy nails.