Whats the risk of the barbie plastic surgery?

Umm...: You should never do surgery to look like a person, whether a real person or a toy. Plastic surgery is to correct particular areas of the body that cause the person to be self conscious. The idea of trying to make a person look like a doll is disturbing.

Plastic surgery : A board certified plastic surgeon will listen to your interests and combined with your own examination and medical history a plan will created that potentially would not involve surgery. The point being that each plan is personalized.

Patient safety: The so called barbie surgery is many times an overuse of the skills of a plastic surgeon. It is the combination of many types of surgery to achieve a perceived perfect person. The use of multiple surgeries is sometimes thought of as a symptom of other psychosocial problems.

Too much: There are many procedures which have been referred to as the barbie plastic surgery so I am not sure if I am answering the question you have posed. However, multiple and repeated procedures on any body part may result in excessive scar tissue which may not lead to successful wound healing. The risks of any surgery includes infection, bleeding, wound breakdown, over/under correction, scarring, ...

There are both...: Physiologic and psychologic issues at play here when somebody wants to look like a barbie. For example, does the patient really have a case of bdd? (body dysmorphic disease). If so, studies show that these people actually get worse if they have surgery. They need counseling instead. In addition, multiple surgeries have their own surgical and anesthesia risks.

Unrealistic: Prudent surgeons avoid patients with unrealistic expectations.