Is surgery the only way?

Okay, I am done with babies. My body is pretty much back to ideal weight. Which also means, notice of some stretched marks (I am okay with them). The little tummy is starting to show the extra stretched out skin...not too bad, but not comfortable enough to wear a two piece.

Is surgery the only way to tighten the belly wrinkly skin or there are successful exercise that help make the skin tighter?

Is surgery the only way?
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