What are some biological factors that can underly intersex?

Note: A number of the items that will be linked to below are in the process of being edited for inaccuracies.

They include…

• 17-beta-hydroxysteroid dehydrogenase deficiency
• 5-alpha reductase deficiency
• Androgen Insensitivity Syndrome – AIS
• Ambiguous genitalia
• Aphallia
• Clitoromegaly
• Congenital Adrenal Hyperplasia – CAH
• Cryptorchidism
• Endocrine-disrupting chemicals
• Gonadal dysgenesis, partial or complete
• Hypospadias
• Iatrogenic
• Idiopathic
• Kallmann syndrome
• Klinefelter Syndrome
• Late Onset Adrenal Hyperplasia – LOAH
• Micropenis
• Mild Androgen Insensitivity Syndrome – MAIS
• Mosaicism involving sex chromosomes
• MRKH – Müllerian agenesis; vaginal agenesis; congenital absence of vagina
• Not XX and not XY
• Ovotestis, formerly called “true hermaphroditism”
• Partial Androgen Insensitivity Syndrome – PAIS
• Progestin-induced virilization
• Swyer syndrome
• Turner syndrome
• XXY