One important goal in the management of children with classic congenital adrenal hyperplasia (CAH) is to achieve normal growth Aim of the study: analyze the growth pattern of infants with CAH during their first year of life and to study the effect of replacement therapy on the rate of growth. Results: the study included 30 infants with salt wasting CAH. Mean dose of glucocorticoid replacement therapy during their 1st year ranged from 8.63 to 45 mg/m²/day and their mean length SDS ranged from -2.62 ± 1.76 Conclusions: normalization of adrenal precursors needed high dose of glucocorticoid therapy with impaired growth velocity.