Deviant behavior is behavior that is a recognized violation of social norms at its extreme it is antisocial behavior. Formal and informal social controls attempt to prevent or minimize deviance.One such control is through the medicalization of deviance.Acting upon certain discriminatory facts or problems. Deviance defines moral boundaries, people learn right from wrong by defining people as deviant. 2  A serious form of deviance forces people to come together and react in the same way against it. 3  Deviance pushes society's moral boundaries which, in turn leads to social change.