- Improvement in psychological well-being and mood
- Improvement in erectile dysfunction
- Improvement in libido
- Increased muscle mass
- Increased strength and stature
- Preservation of bone mass
A man may be considered hypogonadal at any age if total testosterone is less than 200 ng/dl, or bioavailable testosterone is less than 60 ng/dl. Basaria and Dobs of Johns Hopkins University recommend that elderly men with symptoms of hypogonadism and a total testosterone level < 300 ng/dl should be started on hormone replacement.