Why was Cesare Lombroso's theory of the born criminal rejected by social scientists?

Cesare Lombroso’s theory of the "born criminal" was rejected by social scientists primarily because it relied on the scientifically unsupported claim that criminal behavior is determined by hereditary, biological "atavism"—the idea that certain individuals are evolutionary throwbacks.12

Lombroso argued that these individuals could be identified by physical "stigmata," such as specific skull sizes or facial asymmetries. However, the scientific community shifted away from this biological determinism in favor of explanations rooted in environmental factors. While Lombroso himself eventually acknowledged that most offenders are shaped by their environment rather than being "born criminal," his earlier focus on physical and constitutional defects as the primary drivers of crime was ultimately discredited.12

In contrast, social scientists increasingly embraced the perspective pioneered by figures like Adolphe Quetelet, who demonstrated that crime rates are deeply influenced by the structure of society itself. By prioritizing social and environmental contexts over biological traits, the field of criminology moved toward a more comprehensive understanding of criminal behavior.21