[The current possibilities in the diagnosis of hypogonadotropic hypogonadism]

The diagnosis of hypogonadotropic hypogonadism must be clinically suspected. They produce differential diagnosis problems. The possibilities of diagnosis are reviewed (static hormonal determination, dynamic test-clomiphene test, LHRH acute test, etc.), highlighting the pulsating administration of LHRH which, together with endogenous pulsating of LHRH study (more difficult), are the most useful procedures in differentiating the level of the lesion of hypogonadotropic hypogonadism, as well as differentiating the puberty delayed cases.