Neither is very good. Even the regular third-class hospitals have had examples of failed operations, but they just didn't say it. In fact, as long as the operation is risky, once it fails, it will bring more pain to the patient. As long as you are not born particularly ugly, or have to do it because of accidents or accidental disfigurement, there is no need to do it. The key to a person is inner beauty. No matter how beautiful the external things are, they will age with the passage of time. Only inner talent and practical learning can make you gain the respect of others. So I said it was unnecessary. It's totally unnecessary.