There are many kinds of scars, in fact, concave-convex scars are the most common. Cuts, operations and infections in life may cause concave-convex scars, but they generally do not need special repair. Only when the scar is big and obvious do you know how to repair it? Let's take a look! Surgery, infection, trauma, acne, chickenpox or smallpox can all lead to concave scars, leading to dermal and subcutaneous tissue defects of the skin. In the subsequent healing process, collagen and elastin are missing, leaving a permanently sunken scar. When repairing sunken scar, different methods should be taken to fill the defect according to the degree of scar depression, so as to restore the normal shape. When scar tissue causes body surface depression deformity, there are often defects of subcutaneous tissue, muscle and bone tissue. Simple concave scars may be superficial, or local linear scars and depressions, while extensive depressions will spread to a larger area and deeper. The repair of concave-convex scars can be carried out by grinding skin and surgical resection according to the situation. For example, the superficial concave scar left by acne can be repaired by skin grinding, while when dealing with simple linear concave scar, a thin layer of epithelial tissue on the scar surface can be removed first, leaving deep scar tissue, and then a horizontal incision is made under the skin on both sides, the subcutaneous tissue on both sides is secretly separated, and the wound edge is pulled and stitched on the deep scar tissue. This method has a good effect on repairing the scar with low depression. If the depression is deep, 1~2 pedicled adipose tissue flap can be designed in the subcutaneous tissue near the incision and rotated to fill under the suture. When repairing a large range of concave-convex scars, in addition to removing scar tissue, some tissues need to be transplanted or implanted in the depression to improve the appearance. In addition, we should also pay attention to the tissue tension after skin covering after scar resection. Filled tissue can be determined according to local needs, such as dermis, fat, fascia, cartilage or bone, and sometimes composite tissue with real fat or fat fascia can be used for transplantation.

Is this ok?