After people noticed
some drastic changes in Bristol Palin’s face, the 20-year-old admitted to an operation—but says it wasn’t plastic surgery. Palin says she underwent
corrective jaw surgery in December. "Yes, it improved the way I look, but this surgery was necessary for medical reasons,” she tells
Us Weekly. She says she needed to realign her teeth and jaw but is pleased, anyway, with the surgery’s other results. "I look older, more mature and don't have as much of a chubby little baby face."