In congenital adrenal hyperplasia most common deficiency
Ans) a (21- alpha ) Ref Nelson 18'h ed p 2360More than 90% of CAH cases are caused by 21 -hydroxylase deficiency.
21- alpha hydroxylase deficiency
11- beta hydroxylase deficiency
17 - hydroxylase deficiency
3 beta hydroxylase deficiency
Endocrinology