"Bariatric surgery is not a cure but rather a tool to give a patient another chance at a lifetime of healthy living, diet and exercise," said Dr. Scott Belsley, director of Robotic Surgery at St. Luke's-Roosevelt Hospital in New York.
Shropshire said this second chance has changed his life.
"People who hadn't talked to me over the summer, they noticed a big change in me," he said. "They noticed my personality coming out, me being more bright and outgoing and stuff. And I can do more with everybody, like go out and have fun."
Dr. Richard Besser, ABC News' senior health and medical editor, appeared on "Good Morning America" today to talk about the issue. He gave some tips for how you can help your teens remain at a healthy weight.
Get the sodas and other sweetened beverages out of the house. (No child will spend his or her allowance on them).
Model the behavior you want to see. If you exercise, your children are more likely to follow suit. If you eat what your body needs (and no more) your kids will be more likely to do the same.
Have a family dinner. The dinner table is a great place to model the eating behavior you want to see.
Limit screen time and find active alternatives. The American Academy of Pediatrics recommends no more than 2 hours per day.
On the weekends be an active family. Find physical activities that you can do together.
ABC News' Katie Moisse contributed to this report.