What is a primary characteristic of Pterygium?

Pterygium is primarily characterized by excess tissue growth that extends from the cuticle onto the nail bed. This condition occurs when there is an abnormal growth of skin cells, often resulting in the formation of a triangular projection that can interfere with nail growth. The excess tissue can be a response to trauma or inflammation, leading to the thickening and overgrowth of epidermal tissue.

Understanding this primary characteristic is essential for nail technicians aiming to identify and manage various nail disorders effectively. Other attributes, such as dryness, thickness, or brittleness of the nail, do not align with the specific nature of pterygium, which is distinctly identified by the proliferation of tissue rather than changes to the nail structure itself. This focus on tissue growth is critical for proper diagnosis and treatment planning in nail care practices.