oral stage - 0-1 years old, focus of pleasure is the mouth, child is breastfed by mother
anal stage - 1-3 years old, focus of pleasure is anus, child is toilet training and focus on withholding and expelling faeces
phallic stage - 3-6 years old, focus of pleasure is genitals, children experience the oedipus complex or electra complex
latency stage - 6-12 years old, previous conflicts are resolved and development of defence mechanisms
genital stage - 12 to adulthood, focus of pleasure is genitals, child's sexual desires become conscious