Knowledge

Time can heal the wound, what about scar?



During the process of growing up, people will inevitably encounter a variety of injuries, resulting in a variety of scars on the body. But in this "yan is justice" world, if there is an ugly scar on the face or body, it is often accompanied by a mark of life, so "not leaving a mark" is the wish of many people.

Scars are left by the body when repairing damaged skin and can be seen as a natural product of the repair process. It is a visible scar of the naked eye due to excessive proliferation of fibroblast tissue. The appearance is very different, and the more common scars include the following types:

1, Flat, light scars

This is the most common type of scar, usually caused by shallow, thin scratches and abrasions. After the wound has just healed, the color of the scar may be red, deep red, with some protrusions. As the recovery time increases, it will gradually flatten and the color will fade. This process can take a long time and can still leave traces. If the wound is narrow, the edge of the wound is relatively flat, usually recovering faster, forming a light-colored linear scar. If the wound is wider and there are more damaged parts, it is difficult to form a flat edge, the recovery time is longer, and the possibility of forming a flat scar is also lower.

2, atrophic scar

This is concave and has a jagged or smooth scar inside. After the skin is damaged and healed, it causes the collagen at the bottom of the skin to be deficient, resulting in scar symptoms. The more common causes are: chickenpox, acne, scratches, surgery and so on. The acne pits that people often say are atrophic scars, which can also be subdivided into Ice Pick, Boxcar and Rolling.

3, hypertrophic scars

In contrast to atrophic scars, hypertrophic scars appear as bulging, red, swollen, and hyperemic states, which are accompanied by itching during hyperplasia. The appearance of hypertrophic scars and keloids is similar, but the extent of the protrusions does not exceed the extent of the original wound. Hypertrophic scars are more common and may be affected by all, with no ethnic preference.

4, keloids

The keloid appears as a raised, thickened scar with a range of protrusions that exceeds the area of the wound. Compared with normal skin around, the color is redder or darker, and the darker the color, the more severe the scar is. The incidence of keloids is about 10%, and the incidence of dark-skinned people is high and will not naturally fade over time. Need to be reminded: keloid is a kind of scar disease that is easy to relapse. It is recommended that patients should be treated with professional scar prevention at the same time to avoid recurrence.

5, contracture scar

After the skin is burnt, it is prone to contracture scars. After a large burn has healed, the appearance changes due to local contraction, and deep contracture scars may even cause dysfunction, including muscle, nerves and bones.

6, growth lines

Growth streaks are also considered to be a type of scar and are skin streaks caused by stretching of connective tissue of the skin. When the skin stretches too fast, some of the collagen fibers are damaged, so the underlying blood vessels can appear through the skin, appearing as red or dark purple stripes. When the blood vessels gradually recover, they will appear white.

What factors affect the severity of the scar?

The resilience and flexibility of young people's skin are stronger than those of older people. In the recovery process of the same degree of trauma, older people are more likely to form severe scars. In addition to age, these factors can affect the severity and severity of scarring: the severity of the skin's wounds, the location, the blood supply to the wound, the genetic characteristics of the skin, including thickness, color, and so on.