The Oedipus complex is a theory of Sigmund Freud, and occurs during the Phallic stage

of psychosexual development. It involves a boy, aged between 3 and 6, becoming unconsciously sexually attached to his mother, and hostile towards his father (who he views as a rival).

What does the Oedipus complex explain?

Oedipus Complex. The attachment of the child to the parent of the opposite sex, accompanied by envious and aggressive feelings toward the parent of the same sex. These feelings are largely repressed (ie. made unconscious) because of the fear of displeasure or punishment by the parent of the same sex.

Is Oedipus complex a real thing?

Freud used the term “Oedipus complex” to describe a child's desire for their opposite-sex parent and feelings of envy, jealousy, resentment, and competition with the same-sex parent. It's important to note that there's very little evidence that the Oedipus (or Electra) complex is real.