What is secondary hypogonadism? Lack of gonadal hormones (Testorterone in men and Oestrogen in women) is called Hypogonadism and when this happens due to lack of Pituitary hormone it is called secondary Hypogonadism. Normally two Pituitary hormones known as LH and FSH are responsible for stimulating Testes and Ovarian in men a and women respectively. [...]