People's skin is very fragile, and scratches, knocks and burns may leave scars. It can be explained in one sentence that scar is an important part of human self-defense system and the inevitable result of skin wound healing. When the injury reaches the depth of dermis and below, it will form a scar. Every layer of the skin has its own work and mission. Take the dermis as an example. In addition to the gel-like matrix, there is a kind of reticular collagen fiber between cells in the dermis, which eventually presents an irregular natural arrangement with the development of the body, so it will make our skin Q-elastic and flexible. Once the skin is injured, it usually goes through three stages: 1. Platelets quickly gather near the wound, try their best to block the injured part of blood vessels, combine with collagen fibers to form blood clots, prevent blood outflow and virus invasion, and summon white blood cells to help.

2. An army of white blood cells will kill invading viruses and bacteria, help us eliminate inflammation and accelerate wound healing. At this time, people will feel the redness and pain of the wound. 3. Tissue proliferation, a large number of stem cells split to rebuild blood vessels and nerves, fibroblasts worked overtime to lay collagen fibers, and the wound healed quickly. If you observe the scar with a microscope, you will see that the arrangement of collagen fibers has become different, and the appearance is smooth and shiny, with no texture. Scar is like a thread sewn on clothes, which tightly shrinks the original wound together.

First, the injured part:

Generally, facial wounds are lightly scarred, and almost no traces can be seen after healing. Scars of limbs are obvious, and abnormal scars are most likely to appear in chest, shoulders and earlobes.

Second, the severity of the wound:

The more complicated the wound, the longer the postoperative healing time and the more obvious the scar.

Third, the suture time:

It is very important to seek medical attention and suture in time after injury. The longer the wound is exposed, the greater the possibility of infection, not only the healing time is long, but also the scar may be obvious.

It is generally best to suture within 8 hours after injury.

Four, for the wound suture treatment:

Beauty stitching pays attention to wound relaxation, skin edge closure, fine needle and fine thread sewing. These sewing details can make the wounds sew together well, and basically avoid the stitches and eye scars of centipede legs. Minimize scars.

Five, postoperative care is also very important:

Take out stitches on time according to the doctor's advice, otherwise it is easy to form line marks, and special circumstances can be appropriately postponed. Anti-scar drugs can be used externally as appropriate after wound healing. It is recommended to use sunscreen within six months after wound healing to avoid pigmentation.

Six, personal physique:

Because of personal physical differences, the severity of postoperative scars is also different. Some patients can hardly see the scar of the same wound, some patients will have scar widening and hyperplasia, and a few patients will have keloids.

After reading the above introduction, I think everyone should have a deeper understanding of scar.