Technically it can be any age with your parents consent. Due to most parents having morals they usually wont give consent, unless its a medical emergency. Because you are an adult at 18, all parental consent is unessecary in these matters...although by the sounds of it you are quite young and my advice is that you exercise and diet in order to lose weight because it is alot easier for younger adolescents to lose weight than it is if you are older.
Technically there is no age limit, you must be old enough to make an educated decision. If you are in you early adult years, and you still have a higer metabolism you might want to start dieting and exercising before you let some one "stick a knife in you" figure of speech
There is no age requirement. The requirements of proper training are the only ones that must be met.
You can be a newborn and have surgery.
I think 30 is
U can get plastic surgery but why
49 years old she had platic surgery
Yes, She had heart surgery when she was 2 years old.
You have to be atleast 15 years old.
23
More than 8 human years
Yes. Anyone of any age can have back surgery.
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She was 34
When he was 9 years old.
This seems to be an opinion based question. Most people would say 14 years old is too young for rhinoplasty surgery unless that 14 year old was in an accident or has medical issues that can be resolved by having rhinoplasty surgery.