对一个不明原因发热的病人,对其诊断必须具有对引起该综合征的那些疾病的知识,始能做出肯定的估价。如果缺乏从病史上或者物理检查上精细的,而且是重要的发现,或者缺乏评定临床所有用特殊诊断方法的知识,是不能正确诊断的。在这篇报导中,我们评述了有关原因不明发热的一些问题,提出了诊断持续性发热的病人的诊断概要 For a patient with an unexplained fever, a positive estimate can only be made if their diagnosis requires knowledge of the diseases that cause the syndrome. It is not correctly diagnosed in the absence of subtle and important findings from medical history or physical examination, or lack of knowledge of all clinical diagnostic methods. In this article, we reviewed some of the issues related to unexplained fever and proposed a summary of the diagnosis of patients with persistent fever