Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of 21-hydroxylase deficiency ?
    ### Response:
    What are the signs and symptoms of 21-hydroxylase deficiency? Symptoms can vary greatly from patient to patient with 21-hydroxylase deficiency, as a result distinct forms of this deficiency have been recognized. Three common forms include classical salt wasting, simple virilizing, and nonclassical.
    