In Freud's psychosexual stages of development,each developmental stage has a conflict that must be resolved before the infant or child can progress to the next stage.

Psychosexual Stages

Freud's theory of stages of development from childhood to adulthood through which each person progresses, focusing on the erogenous zones that are the source of conflict at each stage.

Developmental Stage

A period in a person's life characterized by specific psychological or physical attributes typically associated with certain age ranges.