Psychosexual Stages of Development

The Role of Conflict

Each psychosexual stage is associated with a particular conflict that must be resolved before the individual can successfully advance to the next stage.

Resolving each conflict costs sexual energy. The more energy a stage demands, the more that stage’s characteristics stay with the person into adulthood.

To explain this, Freud used the analogy of an army on the march. As the troops advance, they meet opposition.

If the battle goes well, most of the troops (libido) move on to the next one (the next stage).

Difficulty changes the arithmetic. The harder the fight at any one point, the more troops must stay behind to hold it, and the fewer are left to advance to the next stage.

Fixation Psychology

Some people cannot move on. They stay stuck at one stage instead of advancing to the next.

Sometimes this is frustration: the child’s needs at a given stage were not adequately met.

Other times it is overindulgence: the child’s needs were so well satisfied that giving up that stage’s pleasures feels like a loss.

Either way, the result is the same. A child who is neglected or over-indulged in the first two years, for example, may become an orally fixated adult (Freud, 1905).

Mental abnormality can occur if a stage is not completed successfully and the person becomes ‘fixated’ in a particular stage. This particular theory shows how childhood experiences determine adult personality.

Both frustration and overindulgence (or any combination of the two) may lead to what psychoanalysts call fixation at a particular psychosexual stage.

Fixation refers to the theoretical notion that a portion of the individual’s libido has been permanently “invested” in a particular stage of his development.

You can remember the order of these stages by using the mnemonic : “old (oral) age (anal) pensioners (phallic) love (latent) grapes (genital).

Oral Stage (Birth to 1 year)

The Oral Stage is the first stage of Sigmund Freud’s theory of psychosexual development, occurring from birth until approximately 18 months.

During the oral stage, a baby’s libido, or innate pleasure-seeking energy, is focused on the mouth.

Example

The baby’s whole world is the mouth. Sucking, biting, breastfeeding and chewing all bring intense satisfaction, and the infant explores by putting almost anything within reach into its mouth.

A pacifier or bottle shows this clearly. An infant sucks one for pleasure alone, not just hunger, and this is how it learns about its surroundings.

Oral Fixation

Freud theorized that oral-stage experiences significantly shape personality.

A child underfed or frustrated during feeding might become a pessimistic, envious, suspicious adult, he suggested.

An overfed or overly gratified child, by contrast, could become optimistic, gullible, and full of admiration.

The pattern continues into adulthood. Freud linked it to specific personality types. A person fixated at the oral stage may eat excessively, smoke, bite their nails, or become overly talkative, still chasing the same oral satisfaction.

We see these traits around us. Smokers, nail-biters, over-eaters, and thumb-suckers are all, on this account, oral personalities, and they lean on such behaviors most under stress.

Anal Stage (1 to 3 years)

The anal stage is Freud’s second stage of psychosexual development, running from roughly one to three years old.

The libido now centres on the anus, and the child gets real pleasure from controlling and releasing their bowels.

Potty training is the flashpoint. Freud believed the conflict between the child’s wish to defecate freely and the parents’ rules comes to a head here.

How that first clash with authority is handled, he argued, shapes the child’s relationship with authority for life.

Anal Fixation

Unresolved conflicts or issues during this stage can lead to problems later on, such as excessive cleanliness, stubbornness, or a need for control.

The way parents approach toilet training can lead to two outcomes:

• Early or harsh potty training can lead to the child becoming an anal-retentive personality who hates mess, is obsessively tidy, punctual, and respectful of authority.  They can be stubborn and tight-fisted with their cash and possessions.

  This is all related to the pleasure of holding on to their feces when toddlers and their mum insist they get rid of it by placing them on the potty until they perform!

• The anal-expulsive personality underwent a liberal toilet-training regime during the anal stage. In adulthood, the anal expulsive is the person who wants to share things with you.

  They like giving things away. In essence, they are “sharing their s**t”!”  An anal-expulsive personality is also messy, disorganized, and rebellious.

Phallic Stage (3 to 6 years)

The phallic stage spans ages three to six. It is the third phase of psychosexual development Freud identified.

This period is marked by the child’s libido (or desire) focusing on the genitals as the primary source of pleasure.

Children become more aware of their bodies. They take a heightened interest in their own genitals and those of the opposite sex.

Their understanding of anatomical sex differences also begins to form. That sparks a complex mixture of emotions — erotic attraction, rivalry, jealousy, resentment, and fear — which Freud termed the Oedipus complex in boys and the Electra complex in girls.

This conflict is resolved through identification. Children start adopting the characteristics of their same-sex parent.

Phallic Stage Fixation

Fixation here, Freud argued, breeds vanity and exhibitionism. The adult becomes sexually aggressive and anxious about their own adequacy.

Picture a manager who dominates every meeting, craves constant praise, and treats any criticism as a threat. Freud would read that as phallic-stage residue.

In men, this can surface as performance anxiety or an outsized need for reassurance. In women, Freud suggested a drive to dominate men or rival other women.

Left unresolved, he warned, it can also disrupt gender identity and the ability to form relationships.

Oedipus Complex

The most important aspect of the phallic stage is the Oedipus complex. Many reject it outright as one of Freud’s most controversial ideas.

The name comes from the Greek myth in which Oedipus, a young man, kills his father and marries his mother.

On discovering this, he blinds himself. “Oedipal” is the generic term covering both the Oedipus and Electra complexes.

In a young boy, the conflict arises because he develops sexual (pleasurable) desires for his mother.

He wants his mother all to himself. So he wishes his father gone.

Irrationally, the boy fears that if his father found out, his father would take away what he loves most: his penis. Hence the boy develops castration anxiety.

That fear of retaliation eventually leads the boy to repress his incestuous desires. Instead, he identifies with his father, adopting the father’s characteristics and values.

The boy resolves his Oedipus complex by imitating, copying, and joining in masculine, dad-type behaviors. This is called identification.

Identification means internally adopting another person’s values, attitudes, and behaviors. Its consequence: the boy takes on the male gender role and adopts an ego ideal that becomes the superego.

Freud (1909) offered the Little Hans case study as evidence of the Oedipus complex.

Aim: Freud (1909) wanted real proof. He sought confirmation of the phallic-stage theory he had already published, not just adult patients’ memories of their own childhoods.

Method: He turned to “Little Hans,” a five-year-old boy with a fear of horses. Freud met the boy only once. Nearly every note came instead from Hans’s father, an early supporter of psychoanalysis who recorded his son’s dreams and remarks.

Findings: Freud read the phobia as displaced castration anxiety, with the horse standing in for Hans’s powerful father. Even small details, like the horse’s black muzzle and blinkers, were read as the father’s moustache and glasses.

Conclusion: Freud’s verdict was confident. He presented the case as direct clinical proof of a universal Oedipus complex, driven by castration anxiety.

As evidence, this is weak. Hans is one unrepresentative child, and the notes were gathered and pre-interpreted by a father already committed to Freud’s theory, a textbook route to confirmation bias.

A simpler, rival reading fits the same facts. Hans’s fear began right after he saw a horse collapse in the street, which looks like ordinary classical conditioning, not a hidden family drama.

Electra Complex

The Electra Complex is Freud’s name for the girl’s parallel conflict. During the phallic stage (roughly ages 3-6), it holds that a girl unconsciously cultivates a sexual attraction to her father and starts to view her mother as a competitor.

In essence, the girl covets her father. Yet she also recognizes that she lacks a penis, a realization Freud labeled ‘penis envy‘, which leaves her with a wish to be male instead.

She then, Freud claimed, resolves this dilemma by repressing her desire for her father and replacing her wish for a penis with a wish for a baby.

Along the way, she blames her mother for her supposedly ‘castrated state.’ This generates real tension.

To ease that tension, she represses her feelings and identifies with her mother instead, adopting a traditional female gender role.

These claims remain contested. They are not broadly accepted in contemporary psychology.

Latency Stage (6 years to puberty)

The latency stage is Freud’s fourth stage, running from about six years old to puberty.

The libido goes quiet here. Freud believed sexual impulses are repressed, producing a calm period in which no further psychosexual development occurs (latent means hidden).

Example

Energy that once fuelled sexual interest now fuels growth. Freud called this sublimation: energy is channelled into school work, hobbies and friendships, and play tends to stay within the same sex.

A child absorbed in a hobby or a friendship group, rather than in romance, is living out this stage.

Latency Stage Fixation

According to Freud, unresolved conflicts during this stage can cause problems later, such as difficulty expressing emotions or forming healthy relationships.

Two things tend to go wrong. A child who fails to make strong social connections, or who falls behind academically, may struggle with feelings of inadequacy, insecurity, and social isolation in adulthood.

Take the social side first. A child who struggles to make friends or fit in with peers may carry that into weaker adult social skills, and feelings of isolation or inadequacy.

The academic side works the same way. A child who falls behind, perhaps struggling with reading, writing, or math, may end up feeling less competent, leading to insecurity.

This stage ends with puberty. Sexual urges resurface, and the individual enters Freud’s final stage, the Genital Stage.

Genital Stage (Puberty to adult)

The Genital Stage is Freud’s fifth and final stage, beginning at puberty and lasting into adulthood.

The libido re-emerges here. It turns towards peers of the other sex, and sexual instinct now aims at mature heterosexual pleasure rather than the self-pleasure of the phallic stage.

This is also when romantic feeling arrives, and the individual starts forming real intimate relationships.

Example

An example: a teenager begins to experience sexual attraction and starts exploring their sexuality.

As they mature physically, they develop deeper romantic interests. These grow into sexual attractions toward others.

These feelings may lead to a first romantic relationship, or just a crush on a peer. Along the way, the teenager typically learns about sex education, consent, and safe sex.

Emotional ups and downs are common. This stage is not only about sexual attraction; it is also about forming meaningful emotional bonds with others.

Through these experiences, teenagers come to understand their own sexual identity, and learn how to form mutually satisfying relationships.

It is a period of adolescent sexual experimentation. Its successful resolution, on Freud’s account, is settling into a loving one-to-one relationship with another person in our 20s.

Genital Stage Fixation

For Freud, healthy adult sexuality meant heterosexual intercourse. Fixation could block this, pushing sexual expression into other outlets instead.

Oral fixation is one example. It can leave a person seeking sexual pleasure mainly through kissing and oral sex rather than intercourse.

Unresolved conflict at this stage, Freud argued, could also cause sexual dysfunction or difficulty forming healthy relationships.

Critical Evaluation

Scientific Credibility

While Freud’s idea of stage-based child development is recognized, his emphasis on their sexual nature remains debated. His theories stemmed from psychoanalyzing patients and a single-child case study (Little Hans).

With its precision, modern biology sometimes aligns with Freud; for instance, infants’ predominant right hemisphere activity correlates with his notions of the id and the unconscious (Divino & Moore, 2010).

Does evidence support Freudian psychology? Freud’s theory is good at explaining but not predicting behavior, which is one of the goals of science.

For this reason, Freud’s theory is unfalsifiable: it can neither be proven true nor refuted. The libido, for example, is difficult to test and measure objectively.

Overall, Freud’s theory is highly unscientific.

A classic defence illustrates why. Take the prediction that men fixated at the oral stage, being dependent types, prefer partners with large breasts.

If they do, Freud’s theory is confirmed. If they prefer small-breasted partners instead, the theory says an unconscious defence called reaction formation has flipped the wish into its opposite, so that result confirms the theory too.

Heads the theory wins, tails it still wins. That is not a testable science.

Freud may also have shown research bias in his interpretations. He may have paid attention only to information supporting his theories, and ignored information and explanations that did not fit them.

Fisher & Greenberg (1996) push back on this verdict. They argue Freud’s theory should be judged hypothesis by hypothesis rather than as a whole, and concluded that evidence supports his concepts of oral and anal personalities.

Criticisms

Four criticisms dominate modern discussion of Freud’s psychosexual theory:

1. Lacks Scientific Rigor: The theory relies on case studies and self-analysis rather than systematic, testable methods.
2. Overlooks Attachment and Prenatal Evidence: Rival accounts from Bowlby and modern fetal-development research offer a more testable alternative to the Oedipus complex and birth-trauma theory.
3. May Reframe Real Abuse as Fantasy: Masson’s reinterpretation suggests some of Freud’s “Oedipal” cases may have involved real childhood abuse that Freud reframed as fantasy.
4. Male-Centred and Dated: The theory’s focus on male development, including “penis envy,” fails to capture female or non-heteronormative experience.

Subjectivity and Lack of Scientific Rigor

Case studies and Freud’s own self-analysis, not systematic empirical methods, are what his theories rely on most heavily.

Critics argue this lack of objectivity makes the theory unfalsifiable—there’s no clear way to prove or disprove ideas like libido or the unconscious.

As a result, many contemporary psychologists view Freud’s theories as more speculative than scientific.

Alternative Developmental Perspectives

While John Bowlby agreed with Freud’s emphasis on parent-child attachment, he thought attachment theory offered a clearer developmental lens than the Oedipus Complex. It is observable even in animals.

Where Freud emphasized sexual drives, Bowlby stressed emotional bonding and attachment between children and caregivers.

Maternal deprivation, Bowlby argued, leaves lasting psychological effects.

Freud himself scarcely addressed fetal development. His follower, Otto Rank (1924), went further, proposing that “birth trauma” profoundly shapes lifelong personality.

Modern evidence disagrees. DiPietro et al. (1996) found similar alertness, sensory capacities, and learning abilities in fetuses and newborns, contradicting Rank’s claim.

Early-life experience clearly matters. But this shows it may not align neatly with either Freud’s or Rank’s original models.

Reinterpretations of Key Themes

Jeffrey Masson, drawing on Freud’s own case records, controversially claimed that Freud’s patients had experienced child sexual abuse, which Freud allegedly replaced with the less shocking Oedipus Complex theory.

If true, this significantly undermines Freud’s credibility. Such reinterpretations reveal the potential for bias or a desire to preserve Freud’s overarching theory, even at the expense of victims’ experiences.

Freud believed psychological development culminated with the Genital Stage in adolescence, asserting that fundamental characteristics remained unchanged in adulthood.

Contrarily, Erik Erikson suggested development continued throughout life. Erikson concurred with Freud on the concept of stages defined by crises.

For instance, adolescents grapple with identity versus role confusion, and young adults face a tension between intimacy and isolation.

Female Development and Non-Heteronormative Orientations

Male development is where Freud’s early 20th-century cultural framework was centered, leaving the female experience underexplored and referencing concepts like “penis envy.”

As Karen Horney argued, penis envy is not about anatomy at all.

Horney was an early, influential critic of Freud’s male bias. She read the girl’s envy as envy of men’s greater social power and freedom, not of the organ itself (Horney, 1926).

She proposed a reciprocal idea, too: womb envy. This is an unconscious envy men harbour of women’s capacity to bear children, which Horney read as a hidden motive behind the theory’s own male bias.

Contemporary psychologists highlight how these ideas fail to encompass the nuances of female sexuality or gender-fluid and non-heterosexual identities.

Modern discussions question whether psychosexual stages apply uniformly across diverse cultural and sexual contexts.

Sigmund Freud	Erik Erikson
Focused on psychosexual stages	Focused on psychosocial stages
Proposed five stages (emphasizes childhood)	Proposed eight stages (throughout the lifespand)
Stages focused on physical needs and urges	Stages focused on psychological needs and social interaction
Id, ego, and superego are the three levels of personality	Identity, intimacy, and generativity are the three levels of personality
Each stage must be resolved for a healthy personality	Each stage must be mastered for a healthy personality

Contemporary Research

Freud’s stages themselves have little modern empirical support. One offshoot, though, has been put to a genuine test: does toilet training really forge the “anal character”?

Aim: Torgersen et al. (2000) asked a sharp question. How much do genes, rather than upbringing, shape personality disorders, including the obsessive-compulsive traits Freud tied to the anal stage?

Method: A twin study of 92 identical and 129 fraternal twin pairs, assessed with a structured diagnostic interview and combined with population prevalence data from over 2,000 people. Statistical modelling then split the variance into genetic, shared-family and unique-environment components.

Findings: The result was stark.

The obstinacy-orderliness-parsimony cluster Freud attributed to harsh toilet training was highly heritable, at around 78%. Shared family environment, the very thing toilet training represents, added nothing to the best-fitting model.

Conclusion: The trait cluster is real. Toilet training does not cause it.

A later review calls the psychoanalytic account “anachronistic,” since the heritability finding sits outside any existing origin story for the trait (Hertler, 2014).

As a test of Freud’s theory, this is far stronger than his own case-study method. It uses a genetically informative sample with formal modelling. The causal claim, not just the description, is what it tests.

The most serious modern engagement with Freud comes from neuropsychoanalysis, a field seeking dialogue between psychoanalytic ideas and neuroscience.

Aim: Yovell, Solms and Fotopoulou (2015) asked a pointed question. Can psychoanalysis productively engage cognitive and affective neuroscience without losing its own perspective?

Method: Their paper is a conceptual review in the field’s flagship journal, tracing neuropsychoanalysis’s history and grounding the argument in a brief clinical case.

Findings: Neuroscience, they argue, can enrich analytic models of mind. But the dialogue is “necessary but not sufficient” for psychoanalysis; it does not reduce one field to the other.

Conclusion: Neuropsychoanalysis is a legitimate development of Freud’s ideas. Even so, its own leading proponents stop well short of claiming it confirms the psychosexual stages.

Applications

Freud’s theories have one main application: therapy. It is called psychoanalysis.

Psychoanalysis, rooted in Freud’s theories, delves into the unconscious to understand developmental causes. Clients learn about their unresolved conflicts and fixations by exploring dreams and memories.

With this awareness, previously subconscious urges can be recognized and managed. Typically, clients have weekly hour-long sessions.

Contrary to stereotypes of clients on couches, both usually sit facing each other. Building trust can take months, making psychoanalysis a long and potentially costly process.

While individual sessions can be expensive, group therapy offers a more affordable alternative, where clients collaboratively address and understand their unconscious issues.

Cultural and Intellectual Legacy

Freud’s theory reshaped more than psychology.

Everyday language still carries its fingerprints: a slip of the tongue is a Freudian slip, a tidy perfectionist is “anal-retentive,” and a craving is an “oral fixation.”

The theory also seeded a family of psychodynamic successors. Ego psychology and object relations theory kept Freud’s developmental, conflict-based frame, while Erikson’s psychosocial theory and Adler’s individual psychology rejected his claim that sexuality drives all behaviour.

Even Freud’s harshest critics concede this reach.

That is why psychosexual theory remains a fixture of introductory teaching, both as history and as a lesson in how to evaluate a theory.

Balancing Legacy and Limitations

Freud’s ideas laid a significant historical foundation for psychoanalysis, therapy, and our understanding of childhood’s influence on later life.

Yet, they need to be contextualized alongside modern attachment research, social and cultural factors, and evolving insights into human sexuality. A balanced view recognizes:

• Contributions: Freud introduced the concept that childhood matters—a groundbreaking notion for its time—and provided a foundation for subsequent theories and therapeutic techniques.
• Limitations: Scientific inaccuracy, cultural and gender bias, lack of empirical support, and insufficient attention to broader social, biological, and lifespan factors.

Today, many clinicians and researchers draw selectively on Freudian concepts like the unconscious or defense mechanisms. At the same time, they acknowledge that contemporary psychology has broadened our understanding of human development well beyond Freud’s original framework.