Hypogonadism is a clinical condition characterized by low serum testosterone levels occurring in association with any of the signs and symptoms listed:
Sexual symptoms
Diminished energy, sense of vitality, or sense of well-being
Increased fatigue
Depressed mood
Impaired cognition
Diminished muscle mass and strength
Diminished bone density
Anemia
Table 1. Hypogonadism; *The definition is adapted from the 2002 position statement on diagnosis, treatment,and monitoring of hypogonadism by the Sexual Medicine Society of North America, a speciality society of the American Urological Association.