Type D is the least common type of SIADH where ADH secretion is completely normal, yet urine osmolality is still high.
D型是最少见的类型，其中ADH的分泌完全正常，但尿液的渗透压仍较高。
英语百科
Type D personality
（重定向自Type D）
Type D personality, a concept used in the field of medical psychology, is defined as the joint tendency towards negative affectivity (e.g. worry, irritability, gloom) and social inhibition (e.g. reticence and a lack of self-assurance). The letter D stands for "distressed".