Sigmund Freud is the father of psychoanalysis, a branch of psychology that focuses on treating mental illness by analyzing various stages of growth and types of human behavior.

1. Oral : The oral stage begins at birth when the oral cavity is the primary focus of libidinal energy.

2. Anal : With the inception of toilet training comes a child’s obsession with the erogenous zone, i.e., anus, and the retention or expulsion of the feces

3.  Phallic : The phallic stage is the most significant, crucial sexual conflict in Freud’s development model. In this stage, the child’s erogenous zone is the genital region.

4. Latency : The resolution of the phallic stage leads to the latency period, which is not a psychosexual stage of development, but a period in which the sexual drive lies dormant

5.Genital : In the genital stage, as the child’s energy once again focuses on his genitals, interest turns to heterosexual relationships.