Peak growth velocity (PGV) occurs at 14–15 years inmost European
boys [1] after which growth velocity (GV) decreases rapidly [1,36].
When growth velocity has faltered under 3.5 cm per 12 months, cessation
of growth can be expected to occur within 2 years [29,36]. Complete
cessation of growth thus occurs between 16 and 18 years of age
in most boys [17,29]. A fraction of sexually mature boys seek a
growth-promoting treatment when they realize that their rapidly
decreasing growth velocitywill not allowthemto reach an adult height