What is the definition or description of: congenital adrenal hyperplasia?

See below: It is a collection of genetic conditions that limit your adrenal glands' ability to make certain vital hormones. In most cases of congenital adrenal hyperplasia, the adrenal glands don't produce enough cortisol. The production of two other classes of hormones also may be affected, including mineralocorticoids (for example, aldosterone) and androgens (for example, testosterone).