hypogonadism /-gō″nədiz′əm/ , a deficiency in the secretory activity of the ovary or testis. The condition may be primary or caused by a gonadal dysfunction involving the Leydig’s cells in the male, or it may be secondary to a hypothalamus or pituitary disorder. Secondary hypogonadism is sometimes further differentiated into pituitary hypogonadism and hypothalamic hypogonadism.
