Male: testosterone deficiency

Female: estrogen and or progesterone deficiency

Sexual dysfunction

Etiology

Male

pretesticular = secondary hypogonadism; testicular = primary hypogonadism; post-testicular = obstruction

Female

Classification

• Primary hypogonadism
• Secondary hypogonadism
• Normal FSH & Sex Hormone - Uterine or Post-testicular causes

Pathogenesis

Presentation

In male:

• Under-virilization
• reduced muscle mass
• Erectile Dysfunction
• Gynocomastia (maybe)

In female:

• Oligo-amenorrhea

In both:

• Low libido/Arousal
• Infertility
• bone loss

Investigations