As we age, aging changes gradually appear on the face, especially the deepening of the nasolabial folds is the most obvious. So what is the cause of this? I believe that there are three reasons for the deepening of nasolabial folds. What are the three reasons for the deepening of nasolabial folds, and how can we tell if the nasolabial folds have deepened? The nasolabial folds are divided into three degrees according to their obviousness: 1. mild: no obvious creases and nasolabial ridges are visible at rest, and slight creases are visible when smiling; 2. moderate: obvious nasolabial creases and nasolabial ridges are visible at rest, but nasolabial ridges do not exceed the nasolabial folds; 3. severe: deeper nasolabial folds are visible at rest, and how to remove nasolabial ridges forward and down exceed the nasolabial folds. What are the reasons for the formation of nasolabial folds? Three reasons cause the nasolabial folds to deepen. 1, skin aging and relaxation Undeniably, some people are born with heavier nasolabial folds than others, but in general, after the age of 35, nasolabial folds will slowly deepen. In addition to genetic factors, it is mainly caused by age factors. As we grow older, the collagen and water content in the skin will gradually lose, and the subcutaneous fat will also shrink and sag, causing the skin to sag and age, forming a depression on the surface of the skin, which will produce nasolabial folds. 2, too much expression Want to know how your nasolabial folds appear because of your expression? It is very simple. If the nasolabial folds extend from the side of the nose to the corner of the mouth, it is formed because you love to smile too much; if the nasolabial folds extend downward from the corner of the mouth, then you should review yourself to see if you like pursing your lips and skimming your mouth too much! 3, air pollution, computer and cell phone radiation and irregular daily routine Air pollution, computer and cell phone radiation and irregular daily routine can also accelerate the generation of nasolabial folds, so to solve the problem of nasolabial folds, we must avoid these situations.