What should be avoided to preserve the integrity of the matrix?

To preserve the integrity of the matrix, it is crucial to avoid injury or trauma. The matrix is the tissue under the base of the nail bed responsible for nail growth. Any injury or trauma to this area can lead to abnormal nail growth, splitting, or even permanent damage to the nail structure.

In contrast, while frequent painting and excessive filing might not be ideal for nail health, they do not fundamentally impair the matrix itself. Proper sanitation is essential in a nail care environment, but it does not directly affect the integrity of the nail matrix. Focusing on the prevention of injury or trauma is vital for maintaining the health and function of the matrix, which ultimately influences the appearance and strength of the nails.