What color typically indicates a nail infection?

A green color typically indicates a nail infection, often associated with a condition called pseudomonas infection. This usually occurs when bacteria penetrate under the nail or within the nail bed, resulting in a distinctive greenish hue, which is a result of the bacteria's pigment. Recognizing this color can help a cosmetologist identify potential nail infections and recommend appropriate care or refer the client to a healthcare professional.

Other colors may indicate various conditions but do not typically signal a nail infection. Red might suggest inflammation or irritation, blue could indicate a lack of oxygen (cyanosis), and yellow can be associated with fungal infections or other underlying conditions, but green is the distinctive color that indicates a bacterial infection specifically.