Congenital estrogen deficiency

Congenital estrogen deficiency is a genetic condition by which the body is unable to produce or use estrogens as seen in:
 * Aromatase deficiency, a condition where the enzyme aromatase is absent and androgens are not converted to estrogens.
 * Estrogen insensitivity syndrome, a condition where the estrogen receptor is defective and estrogen are not biologically active.