What is the correct way to file nails to prevent splitting?

Filing nails from the outer edge to the center is the correct method to minimize the risk of splitting. This technique allows for a more controlled filing process. By working from the edges inward, you are less likely to apply uneven pressure that could cause the nail to splinter or break.

Additionally, this approach tends to maintain the integrity of the nail, as it protects the nail's natural layers and prevents excessive friction. Proper filing technique is crucial for maintaining healthy nails, ensuring they remain strong and less prone to damage.

Using other methods, such as filing in a back-and-forth motion, can create friction and lead to weaker, more vulnerable nails. Similarly, filing straight across may not accommodate the natural shape of the nail, potentially leading to splitting at the corners.