Disorders of sex development (DSDs) are defined as congenital conditions in which development of chromosomal, gonadal, or anatomic sex is atypical Mutations in genes that encode transcription factors, ...

Also called the oedipal complex, the Oedipus complex is a term used in the psychosexual stages of development theory by Sigmund Freud. The concept, first proposed by Freud in 1899 and not formally ...

Disorders of sex development (DSDs) are estimated to be prevalent in 0.1–2% of the global population, although these figures are unlikely to adequately represent non-white patients as they are largely ...

Penis envy is a theory from early psychoanalyst Sigmund Freud. He believed that when female children realize they lack a penis, they feel “castrated” in comparison to males. Freud believed this was a ...

Oral fixation may occur if a person’s needs are not met during a specific stage of childhood development, according to a theory introduced by psychoanalyst Sigmund Freud. Oral fixations include habits ...

The Electra complex is a term used to describe the female version of the Oedipus complex. It involves a girl, aged between 3 and 6, becoming subconsciously sexually attached to her father and ...