How does scar grow on the body return a responsibility?

summary

Clinically, the most common scar occurs in the skin tissue, often caused by fire, but in fact, any deep tissue and organ in the process of wound repair and healing will produce various degrees of scar tissue and may bring complications. So, some patients asked what happened to the scars?, Today I'd like to share this with you.

How does scar grow on the body return a responsibility?

First, the pathogenesis of scar is a normal and inevitable physiological reaction in the process of natural wound healing after human trauma, and it is also an inevitable result of the process of wound healing. There are two types of wound repair. One is the superficial wound of the skin, which only affects the epidermis, starts from the epithelial cells of hair follicles and sebaceous glands, and heals through simple epithelial formation. After repair, the structural integrity and skin function can be completely restored.

Second: disease classification according to the difference of scar histology and morphology, it can be divided into the following types: 1. Superficial scar skin by mild abrasion, or due to superficial second degree burn, or skin by superficial infection formed, generally involving the epidermis or superficial dermis. The clinical manifestations are slightly different from normal skin in appearance, rough or pigmented in surface, flat and soft in part, and generally without dysfunction. With the passage of time, the scar will gradually become less obvious, so special treatment is not needed. 2. Hypertrophic scar may be formed when the deep dermis is involved, such as deep second degree burn, cutting injury, infection, donor site after cutting medium thickness skin graft, etc. The clinical manifestation was that the scar was significantly higher than the surrounding normal skin, local thickening and hardening. In the early stage, because of capillary congestion, the scar surface is red, red or purple.

Third: Keloid characteristics: I. systemic factors may play a major role, especially specific physical factors, which sometimes show genetic characteristics. 2. Ethnic differences: according to statistical analysis, the incidence of keloids in people with dark skin is 6-9 times higher than that in people with light skin. It may be related to abnormal metabolism of melanocyte stimulating hormone. 3. Significant predilection sites: common in sternum, shoulder deltoid, auricle, mandible, upper back. 4. With the progression of the disease, the scar gradually extended beyond the original base to the surrounding normal skin.

matters needing attention

1. Pressure therapy: it is suitable for patients with large scar area who are not suitable for radiotherapy and local drug treatment. No more than 30 minutes a day. This method has no obvious effect on active keloid, but it can reduce the dose of postoperative radiotherapy and injection. 2. Chemotherapy: the use of long-acting steroid preparations, directly injected into the scar, to inhibit the excessive collagen in the scar, to achieve the effect of scar degradation. The main side effects were skin atrophy, discoloration, telangiectasia, necrosis, ulcer and Cushing like syndrome, most of which were reversible. Other chemical drugs, such as cytotoxin and immunosuppressant, have been reported, but serious systemic side effects limit their application. 3. Radiotherapy: the early use of electron beam or X-ray irradiation after keloid excision (within 24 hours) can reduce the recurrence of keloid and improve the cure rate.