What is a common characteristic of bruised nails?

• A. They appear glossy
• B. They have color changes due to blood clots
• C. They are permanently thickened
• D. They grow faster than normal

Answer: (B)

Bruised nails, also known as subungual hematomas, are characterized by discoloration specifically due to the accumulation of blood beneath the nail. This condition occurs when there is trauma to the nail bed, resulting in bleeding and subsequent staining of the nail. The color changes can range from red to dark purple or black, depending on the severity and duration of the injury.

The other options do not accurately describe bruised nails. For instance, while glossy nails might indicate good health and hydration, they do not correlate with bruising. Permanently thickened nails can occur due to various chronic conditions or infections and are not a defining feature of bruised nails. Additionally, the growth rate of bruised nails is generally not affected significantly; they tend to grow at the same rate as healthy nails rather than faster. Thus, the defining characteristic lies in the presence of color changes resulting from blood clots within the nail structure.