Generally speaking, after the acute phase of trauma, the skin scar starts to form after the wound or incision heals, at this time, patients are generally eager to start the treatment of the unsightly scar, and this eagerness is well understood; however, the treatment of scar, especially the surgical treatment, there is a problem of timing, only at the best time to start the scar treatment, can we get the best surgical The only way to get the best surgical results is to start scar treatment at the best time. For normal skin scars, if there is no hyperplasia, such as most surgical incision scars, after 6-12 months, the symptoms of congestion, pain and hardness of the scar have subsided, and the scar gradually appears to atrophy and soften, at this time, surgical treatment of the scar can be considered. For proliferative scar, the waiting time between trauma and scar treatment may be longer, usually 1-2 years, and some patients may need longer time. Only after the scar matures and softens, congestion subsides, color lightens or gradually approaches normal skin, and symptoms such as itching and stinging disappear, is the best time for surgical treatment; if we blindly pursue premature surgery, more bleeding during surgery If the surgery is pursued too early, the bleeding during surgery will be high, the surgical level will be unclear, the surgical trauma will be relatively large, and the possibility of re-keloid hyperplasia will be significantly higher after the surgery. For keloid scars caused by various reasons, careful consideration should be given when deciding to use surgical means for treatment. Otherwise the chances of recurrence are extremely high. In addition to the general principles mentioned above, the timing of surgical treatment should be carefully decided by analyzing the specific problems in some special cases; if the following conditions exist, surgical treatment should be performed as early as possible to avoid further development of the deformity and more serious secondary damage: severe scar contracture in important parts of the torso caused by scarring, such as severe chin, neck, and chest scar adhesions, which can put the patient’s neck in an extremely flexed position, making it difficult to eat, and making it difficult for the patient to eat. For example, severe chin, neck, and chest scar adhesions can put the patient in an extremely flexed position, making it difficult to eat, affecting breathing, and exposing teeth, and early release of the contracture should be considered for pediatric patients in the growth phase. Exposure of vital tissues or organs, such as severe ectropion of the eyelid caused by lower lid burns, should be treated as soon as possible to avoid further damage such as corneal ulceration and vision loss. Scarring of the perineum and external genitalia, severe scarring in these areas can cause difficulty in urination and defecation, and inability to have sex, seriously affecting the patient’s quality of life and making it difficult to maintain personal hygiene, and should also be considered for early treatment. Some severe scarring of the extremities, such as severe contracture deformities after hand burns, may result in contracture deformities of important structures such as bones, joints, muscles, tendons, and neurovascular bundles if treatment is not performed as early as possible, and further treatment of these deformities is quite difficult once they are formed. Some secondary deformities after surgery, such as deformed fingers caused by scar contracture after juxtaposition surgery, should also be considered for early surgical treatment.