Hanging Skin After Weight Loss?

[forexx]

What can be done to prevent the hanging skin that happens after someone looses alot of weight? Or can it be prevented? Or will surgery be necessary on some level?

Please read my question more carefully. I'm not asking about loosing weight. I'm asking about preventing the hanging skin that results from loosing alot of weight.

[chopsaw]

The other replies are spammed and it is wise to report them, they pick up on words like weight loss and attach their adverts to these posts.
Firstly it is best to lose weight while you are young and lose it slowly so that your skin adapts! If this becomes a problem though, as it does if the weight loss is huge then some element of plastic surgery may be necessary. See your doctor about this.