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The oral stage in psychology is the term used by Sigmund Freud to describe the child's development during the first 18 to 24 months of life, in which an infant's pleasure centers are in the mouth. This is the first of Freud's psychosexual stages.



This is the infant's first relationship with its mother; it is a nutritive one. The length of this stage depends on the society. In some societies it is common for a child to be nursed by its mother for several years, whereas this stage is much shorter in other societies.



The phallic stage is the third of Freud's psychosexual stages, when awareness of and manipulation of the genitals is supposed to be a primary source of pleasure. In this stage the child deals with the Oedipus complex, if male, or the Electra complex, if female. According to Freud, this stage first occurs around the age of five and a half years.