Skin scar healing is an important part of the body's self-defense system and is the result of skin wound healing. The skin is divided into epidermis, dermis, and subcutaneous fat from the surface layer to the deep layer. In this three-layer structure, the dermis has a lot of collagen. In the process of wound healing, fibroblasts will regenerate and destroy collagen. This reorganization balances Related to scar formation. 去暗瘡印產品If only the epidermis or the superficial dermis is injured, it can usually be recovered, but if it reaches the reticular layer of the dermis and below, scars will be formed.

The scar matrix is ​​composed of fibroblast connective tissue students, does not contain elastic fibers, and only forms a thin layer of scar epithelium on the surface, which lacks the normal skin structure of the enterprise. As shown below:

In addition to the self-repairing mechanism of the skin, the generation and deterioration of scars are also related to skin surface tension, causes, individual influencing factors, and age.

1. Skin tension Skin tension includes external tension caused by the degree of skin tissue defect and inherent tension of skin tissue itself. The tension is large, and hypertrophic scars are prone to occur in the moving parts. The mandible and sternum are as follows: anterior, deltoid, upper back, elbow, hip, knee, ankle, and back of the foot.

2. Age: Young people are prone to occur, especially the highest rate of hyperplastic scars in 10-20 years old, mainly due to the vigorous growth of tissues during adolescence, strong post-traumatic reactivity, and high skin tension;

3. Skin pigment: people with pigmentation have more pigment cells and are easy to trigger reactions. The heart rate of blacks is 9 times higher than that of whites. It is easy to occur during the physiological activities of the pituitary gland, 除疤方法such as adolescence and pregnancy;

4. Infection: Repeated infection, long-term wound exposure, excessive proliferation of granulation tissue, proliferative scars or keloids are prone to occur.

5. Foreign bodies falling into the wound. Dust, talcum powder, fibers, and residual hair follicles, sebaceous glands, and sweat glands can cause tissue reactions and cause scar hyperplasia.

6. Other factors The angle between the incision and the skin is perpendicular to the incision of the skin, and the scar will be fine after healing; the larger the angle of inclination, the wider the scar in the dermis, and the more obvious the skin deformity.

7. Other scar hyperplasia is also related to endocrine disorders, immunological changes and other pathological changes.

These factors must also be considered in the communication and diagnosis process with the patient, and their impact must be explained to the patient to avoid postoperative medical conflicts.

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