Congenital adrenal hyperplasia is not a single disease but a group of genetic conditions related to each other by way of the adrenal glands. a family of genetic conditions affecting your adrenal glands.
It especially affects children (girls and boys) in that it keeps their genitals from developing properly and growth is also inhibited. Those with congenital adrenal hyperplasia have adrenal glands that under produce cortisol (a hormone).
It can be life-threatening but does not have to be.