Infantile adrenocortical hyperplasia is important and needs to be taken seriously. Infantile adrenocortical hyperplasia is an autosomal recessive disorder that can manifest itself in abnormal genital development, growth retardation, hypotension, low blood pressure, hyponatremia, hyperkalemia and hypoglycemia. If no attention is paid, serious complications may occur: ① Advancement of skeletal maturation, height lower than the same age. ② Electrolyte disorders: cause vomiting and diarrhea, dehydration, severe shock and circulatory failure may occur. ③Affect the development of the reproductive system, male precocious puberty, infertility, female menorrhagia or amenorrhea, infertility and so on. Adrenocortical hyperplasia in infants, once the diagnosis is clear, it is recommended to consult the endocrinology department as soon as possible to formulate an appropriate treatment plan. Dietary attention to strengthen nutrition, you can eat more fresh fruits and vegetables, to ensure protein intake.