Although many young people have been very mature in appearance, but the actual physical or psychological maturity is not necessarily mature as the appearance, so need to set the objective criteria to distinguish between appropriate age for surgery:
 
• The age of facial bone developing mature is about 18 to 19 years old, so the operation age is at least older than 18 years old, then it will not affect the normal development.
•The large-scale plastic surgery of face-shaped sculpture requires not only mature physiologic, but also need enough mental maturity to undertake the pressure and impact of surgery, although 18 years old is already a mature age of facial bone development, still there are someone advocate late surgery is better, I think the best surgery age should be 22 to 25 years old, because the school has been completed, life is about to enter the workplace of the competition, it is the best time to change a beautiful new face , and no school and work restrictions, there is enough recovery time.
• To take surgery under the age of 20 should be approved by a legal representative, that is, must obtain parents’ approve to operate.