Which part of the nail is responsible for nail growth?

The nail matrix is the critical part of the nail responsible for nail growth. Located beneath the base of the nail, the nail matrix consists of living cells that produce keratin, the protein that makes up the structure of the nail. As these cells grow and multiply, they push out the older, fully formed cells, which become the visible part of the nail. This process results in the growth of the nail, with the length increasing as new cells are generated in the matrix.

Understanding the role of the nail matrix is essential, as it highlights the biological process behind nail development and the importance of this area in maintaining healthy nail growth. If the matrix is damaged, it can lead to abnormalities in nail growth or even permanent nail loss.