Which part of the nail is typically described as smooth and unspotted?

The nail surface is typically described as smooth and unspotted because it is the outer protective layer of the nail. This surface is made up of the hard keratin protein that provides durability and a polished appearance, making it visually appealing. A healthy nail surface reflects light well and does not have blemishes or irregularities, contributing to an overall neat and professional look, which is a vital aspect in the field of manicuring.

In contrast, the nail bed is the area underneath the nail plate where the nail attaches and, while it plays a crucial role in nail health, it is not visible like the surface. The cuticle is the thin layer of skin at the base of the nail that protects it from infection but is not characterized by a smooth, unspotted appearance. The hyponychium is the tissue under the free edge of the nail and also has a protective function but does not pertain to the visible qualities of the nail surface.