Operation Smile is an international children's medical charity that heals children's smiles, forever changing their lives. As a children's charity, we measure ourselves by the joy we see on all of the faces we help. At Operation Smile, we're more than a charity. We're a mobilized force of medical professionals and caring hearts who provide safe, effective reconstructive surgery for children born with facial deformities such as cleft lip and cleft palate all over the world..