When does alex choose peds? Karev is a total softie. His gift led him to a successful career in pediatric surgery. See where it all began in this scene from Season 6, Episode 8: Invest in Love!
Does Karev go into peds? Introduced as a surgical intern at the fictional Seattle Grace Hospital, Karev eventually obtained the position of resident, later becoming a pediatric surgeon.
Why does Alex go into peds? Years later, while Alex was a peds surgeon in Grey Sloan Memorial Hospital, he happened to come across his father who was admitted as a patient as a result of his drug abuse.