What is accurate about a normal healthy nail?

A normal healthy nail is slightly pink in color due to the underlying blood vessels in the nail bed. This pink hue indicates proper blood circulation and overall nail health. A healthy nail also appears smooth, firm, and free from discolorations, ridges, or abnormalities, which are often indicators of underlying health problems.

In contrast, a bluish nail could signify a lack of oxygen in the blood, which can be a cause for concern. Soft nails may indicate various issues, such as nutritional deficiencies or certain health conditions, rather than healthiness. Wavy nails, or those with ridges, can be the result of aging, trauma, or medical issues, further indicating a departure from optimal nail health. Thus, the identification of the pink color of a healthy nail emphasizes its normal function and condition.