You can perform plastic surgery according to other people's appearance. If someone else's face is given to you through tissue transplantation, it can theoretically be achieved. Liver, kidney, bone marrow, blood, skin, heart, and lungs can all be transplanted. Skin and Muscles are not theoretically impossible to achieve. But in reality it is absolutely impossible. First of all, whether it involves legal, moral, and ethical issues remains to be discussed. Secondly, the cost of immunosuppressants of about 300,000 yuan per year after surgery is unbearable for ordinary people. If the regeneration is due to impaired immune function, Two illnesses or something like that can easily cost millions a year.