46,XX difference of sex development induced by fetoplacental androgens excess

46,XX difference of sex development (DSD) induced by fetoplacental androgen excess is a rare condition in which a baby who is genetically female (with two X chromosomes) is born with external genitalia that appear more masculine or ambiguous. This happens because during pregnancy, the placenta or the developing baby produces unusually high levels of androgens (male-type hormones), which affect how the external genitals form. The internal reproductive organs — the uterus, fallopian tubes, and ovaries — are typically normal and female because the excess androgens only influence development during a specific window of fetal growth. This condition is sometimes called fetoplacental hyperandrogenism-related 46,XX DSD. It is distinct from other causes of virilization in genetic females, such as congenital adrenal hyperplasia (CAH), which is the most common cause. In this particular form, the androgen excess comes specifically from the fetoplacental unit rather than the baby's adrenal glands. The degree of genital ambiguity can range from mild clitoral enlargement to more significant masculinization. Diagnosis typically involves hormone testing, genetic analysis, and imaging to confirm the presence of normal female internal structures. Treatment depends on the degree of virilization and may include surgical correction of the genitalia if needed, hormone monitoring, and psychological support. Because the source of excess androgens is the placenta or fetal tissues during pregnancy, the condition does not usually continue to cause problems after birth, and most affected individuals can expect normal puberty and fertility with appropriate care.

Bring these to your next appointment

• Q1.What is the exact cause of the androgen excess in my child's case?,Does my child have normal internal female organs, and what tests confirmed this?,Is surgery recommended, and if so, what are the risks and benefits of waiting?,Will my child need hormone therapy at puberty or at any other time?,What are the expected outcomes for fertility and sexual function?,Should we pursue genetic testing for aromatase deficiency or other specific genes?,Can you refer us to a psychologist experienced with differences of sex development?

Common questions about 46,XX difference of sex development induced by fetoplacental androgens excess