What Really Happens When You Swallow Gum? Our parents invented some pretty wild stories to prevent us from swallowing things we weren't supposed to. **w that we're older (and wiser), we k**w watermelon seeds won’t actually sprout a tree in our stomach. But What about the tales of gum sticking around in our digestive tract for years? The Sticky Situation ***ImagePlaceholder*** http://greatist.com/sites/default/fi...?itok=lssi0vM8 ...