Kallmann Syndrome (KS) is a type of hypogonadotropic hypogonadism that occurs at birth, since it has a genetic and hereditary origin. However, it is also possible that the mutations that cause this disorder arise de novo.
Individuals affected by KS have an inadequate development of secondary sexual characteristics when they reach puberty, resulting in infertility during adulthood.
On the other hand, KS alters the sense of smell, causing disorders like anosmia and hyposmia.