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Klinefeldt syndrome

Congenital seminiferous tubule hypoplasia syndrome, also known as Klinefelter syndrome, is a common genetic disease with sex chromosome aberration. The disease is characterized by a quasi testicular figure, male breast development, small testicles, azoospermia and increased gonadotropin in urine. The sex chromosome of patients with this disease is 47, XXY, that is, one more X chromosome than normal men. Therefore, this disease is also called 47, XXY syndrome.


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