Diagnostic features of skin abrasions on various parts of the body

In the summer heat, people tend to be thinly clad and the emergency department often sees patients with skin abrasions. Abrasions are injuries caused by abrasion of the skin surface by rough objects, most commonly on the palms of the hands, elbows, knees, and lower legs. After the abrasion, the epidermis is broken, the wound surface appears pale, and there are many small bleeding spots and tissue fluid exudation. Because the dermis is rich in nerve endings, the injury is often very painful, but the regenerative ability of epidermal cells is very strong, if the wound is not infected, it heals quickly and does not leave scars. However, if the wound is infected, a thick layer of black crust will form on the wound surface, and the surrounding skin will be red, swollen, hot and painful, and even the wound will become pus, which will bring great pain to the patient. Skin abrasion is a common surgical trauma, is caused by the action of rough objects or blunt mechanical force friction caused by epidermal peeling, rolled mainly injury, can be manifested as abrasions, impact marks, indentation, indentation marks, etc.. Skin abrasions are mostly located in exposed parts of the body, often occurring in the face (21%-27%), extremities (53%-78%) and trunk (20%-24%), of which extremity abrasions (mainly joint parts) are the most 1-3. Characteristics of joint abrasions The elbow and knee joints are the most likely to cause skin abrasions. Frequent flexion and extension of the elbow and knee joints and large activity, the skin is obviously stretched, and the scab surface is fractured after crusting, resulting in re-injury of the tissue, pain and discomfort, easily leading to infection under the scab and delayed healing, thus limiting the patient’s activities and bringing disadvantages to work and study. Characteristics of facial abrasions Facial injuries, such as improper treatment, will delay healing, and even leave scarring and hyperpigmentation, affecting the aesthetic. Characteristics of trunk abrasions The dorsal skin abrasions are affected by the lying position, body gravity pressure and the patient’s activities such as friction, resulting in the conventional treatment methods are less effective, the wound healing time is prolonged, and even the phenomenon of infection.