手术疤痕(Surgical scar).doc

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手术疤痕(Surgical scar)

手术疤痕(Surgical scar) Forming reason 1, the skin tension, including the degree of skin tissue defects caused by the external tension and the inherent tension of the skin tissue itself. A tense and active part of the body Prone to hypertrophic scars, following mandible, sternum, deltoid, upper back, elbow, hip, knee, ankle, foot etc.. 2, age (young people easily, especially the occurrence of hypertrophic scars 10-20 years old the highest rate, mainly due to puberty organization vigorous growth, strong post-traumatic reactions, and skin tension caused by); 3, skin pigment (colored human pigment cells are more, and also easy to stimulate response, the incidence of black keloids is 9 times that of whites; in the pituitary physiological activity period, such as puberty, pregnancy prone); 4, infection (repeated infection, long-term wound exposure, granulation tissue hyperplasia, prone to hyperplastic scars or keloids); 5, foreign objects fall into the wound (dust, talc, fiber and hair follicles, sebaceous glands and sweat glands residue, can cause tissue reaction, resulting in scar hyperplasia); 6, other factors (incision and skin angle, perpendicular to the skin incision, healing after the scar is the most fine; tilt angle is bigger, the dermis of the scar is more wide, the skin abnormalities are more obvious. There is also the depth of the wound and the healing time of the wound. Incision effect The choice of operative incision is very important for surgical scars, which in medicine is an important issue, not only conducive to good choice of surgical incision doctors surgery, can minimize the formation of skin injury and surgical scars. The choice of incision relates to the exposure of the surgical field, which is a prerequisite for surgery. Ideal incisions should be: close and easy to expose, surgical site, perfect geometry, length appropriate, cut and close conveniently, less trauma, less blood loss. Generally use grasping or bow holding surgical knife. These two ways o

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