The skin under the free edge of the nail is known as what?

The skin under the free edge of the nail is referred to as the hyponychium. This structure plays a significant role in protecting the area between the fingertip and the free edge of the nail. It acts as a barrier against pathogens and helps to prevent debris from getting underneath the nail.

The hyponychium is important for overall nail health and can affect the appearance and growth of the nail plate. It is distinct from other structures related to the nail, such as the cuticle, which is the thin layer of skin at the base of the nail that protects the area from infection. Understanding the functions and locations of these various components is crucial for nail technicians, as it informs proper maintenance and care of both nails and the surrounding skin.