Sometimes it's a concern for the person undergiong cosmetic surgery.
Heidi Montag is a good recent example. She's only 23 years old, yet has undergone more than a dozen cosmetic surgery procedures in the quest to look "perfect." What is "perfect?" it's an objective definition.
In the world of celebrities, cosmetic surgery is a concern because it distorts the true body image of women into something unattainable without surgical intervention.