The epidemiology is not clear; 20% of men in their 60s and 30% of men in their 70s have low testosterone; around 5% of men between 70 and 79 have both low testosterone and the symptoms, so are diagnosed with<unk> . The UK National Health Service describes it as rare.
Late-onset hypogonadism
Prepubertal hypertrichosis
Delayed puberty
Hypogonadotropic hypogonadism
Hypergonadotropic hypogonadism
Hypertelorism
Prognathism
Precocious puberty