Patient: Description of the condition (onset time, main symptoms, hospital visited, etc.): Patient female 25 years old, 6 years old accidental boiling water burns due to infection left scars, the scar area is large, can you look at, if the implantation would be ideal. Doctor: There are three treatment options to consider in your case: 1. scar excision + skin grafting, the most simple surgery, hospitalization time of about 3 weeks, the total cost of about 20,000 yuan, the disadvantage is that the autologous skin donor area will leave obvious scar; 2. scar excision + decellularized dermis + autologous thin skin grafting, the same surgical method and hospitalization time as above, due to the use of decellularized dermis instead of the thickness of the autologous skin, reducing the damage to the autologous skin donor area. The degree of scarring is greatly reduced due to the use of decellularized dermis instead of autologous skin thickness, but the total cost of treatment will go up about 30,000 RMB for the purchase of decellularized dermis; 3. Expansion surgery, which requires two surgeries, the first stage is to implant an expander under the normal skin around the scar, and the post-operative period is about 4 months for water injection and expansion, then the second stage surgery is performed to remove the expander, remove the scar, and use the expanded normal skin to repair the scar The surgery requires about 2 weeks of hospitalization for each stage and 4 months of water injection in between without hospitalization and is performed on an outpatient basis. The advantage is that the repair is the best, but the treatment cycle takes up to more than 5 months and the total cost reaches about 50,000 yuan.