Scar formation, types and prevention In daily life, people inevitably suffer from various injuries, such as burns, cuts, trauma, surgical infections, etc., which cause different degrees of trauma, and the healing process of trauma is completed in the form of scar formation, that is, the repair process of various traumas are healed in the form of scar, therefore, the healing of trauma and scar formation are a series of processes. There is an inseparable causal relationship between the healing of trauma and scar formation.
Usually, after scar formation, there is no scar proliferation or only slight scar proliferation and then immediately decreases, matures and rests, a few scars can experience several months, half a year, one year or even longer, and finally flat, soft and close to normal skin. These are referred to as normal keloids. Very few keloid scars proliferate for a long time, significantly above the skin surface, and have a reddish-brown color, hard texture, itchy, painful or tight feeling, some keloid scars even erode the normal skin, contracture deformity, or repeatedly break down and affect the normal function of the local area, these keloid scars usually need treatment.
1. What are the types of keloid scars? What are the characteristics of each?
Flat scar: basically flush with the surrounding skin, with flat and shiny surface, no normal skin structure and texture such as pores, light or dark local skin color, no uncomfortable sensation and functional impairment.
II. Superficial scar: rough surface, local skin with color change, often involving only aesthetic problems, no functional disorders and discomfort.
III. Deep scar: A scar that occurs under the skin and its deeper tissues. When the damage is small, it usually does not affect the appearance and function. When the damage is extensive, it can lead to skin displacement, organ deformation or ectropion due to pulling.
Fourth, atrophic scar: flat and thin surface, easy to break down after friction, darkening or lightening of scar skin color and hardening of texture. There is usually no discomfort and it does not affect the local function.
V. Depressed scar: a scar lower than normal skin, local skin may have color change, does not affect function, and no obvious discomfort.
Linear scar: a narrow strip with local color different from the surrounding skin, mostly without discomfort and functional impairment.
Webbed scar: Occurs in the area across the joint or around the open organ, with a flat or atrophic scar surface.
Superfluous and bridged scar: The scar is shaped like a superfluous or bridged skin with a flat surface.
Contracture scar: The scar is deep and thick, with a large scope, contracting or proliferating by itself, causing local functional impairment.
Unstable scar: mostly contracture scar, due to local thinness and poor blood flow, it often breaks down in friction-prone areas, repeatedly breaks down or forms ulcers for a long time.
Painful scar: scar with obvious pain and tenderness during or after the proliferating period.
XII. Proliferative scar: higher than normal skin with uneven surface, visible capillary expansion, red or purple color, hard texture, itchy and painful.
XIII. Keloid scar: The appearance and symptoms are extremely similar to proliferative keloid scar, but it keeps increasing in size after eroding the normal skin.