The phenomenon of migration can influence vulnerability among family mem­ bers, including teenagers who assume roles they are not ready to perform. The aim of this paper is to identify behavioral problems in teenage children of migrants and non-migrants from Xalapa, Mexico. The cbcl 6-18 years and the question­ naire on factors related to behavioral problems and migration were administered to a representative sample of 2 371 high school students ages 13 to 17 years. The results show that this is an at-risk population that is particularly vulnerable since over 40 percent of adolescents have some sort of problem such as aggression, anxi­ ety or introversion. The types of problems identified and the relationships found concerning demographic variables and migration are discussed.