What can cause a discolored nail?

Discoloration of a nail can result from various factors, making the understanding of these aspects essential for nail technicians. The correct answer highlights that surface staining, systemic disorders, and poor blood circulation can all contribute to changes in nail color.

Surface staining occurs when nails come into contact with pigments, dyes, or chemicals, leading to localized discoloration. Common examples include staining from nail polish, food, or smoking.

Systemic disorders can affect nail appearance by altering how the body functions. Conditions such as psoriasis, fungal infections, or other health issues may manifest as changes in nail color, texture, or integrity, indicating underlying health problems.

Poor blood circulation can also lead to changes in nail color. In such cases, reduced blood flow may result in nails appearing bluish or pale, which is a reflection of overall circulation and may indicate cardiovascular or other systemic issues.

Therefore, recognizing that all these factors can lead to nail discoloration allows for a comprehensive understanding necessary for effective diagnosis and treatment in the field of nail technology.