临床上把垂体性尿崩症中原因不明的尿崩症又称之为特发性尿崩症。主要是由于下丘脑—神经垂体所分泌的抗利尿激素缺乏而引起肾小管对水重吸收功能障碍，而引起临床上表现多尿、烦渴、多饮与低比重尿为主的一种综合症。而原发性甲状腺功能减低由甲状腺本身病变导致甲状腺素... Clinically, uremic insidia in an unknown cause of diabetes insipidus, also known as idiopathic diabetes insipidus. Mainly due to hypothalamic - pituitary secretion of anti-diuretic hormone deficiency caused by tubular reabsorption of water dysfunction, which caused by clinical manifestations of polyuria, polydipsia, polydipsia and low proportion of urine-based syndrome . The primary hypothyroidism caused by the thyroid itself lesions lead to thyroxine ...