Is there something that's like the opposite of liposuction?

is there opposite of liposuction?

I'm always getting called anorexic and too skinny and I hate it and I want to do something to like look the same size as some of my other friends.

If there is something, how much does it cost?

thanks:)
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+1 y
like instead of getting fat taken out can you get it put in?
Is there something that's like the opposite of liposuction?
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