What Are the Causes of an Unexplained Fever?

Unexplained fever has always been a problem that puzzled physicians. Until now, there has been a lack of relevant monographs on the system, so that it lacks a deep understanding of its essence and it is difficult to cultivate the correct clinical thinking. This book systematically expounds it from theory and practice, and strives to extract regularity from the chaotic appearance. At the same time, the causes of fever of various unknown causes are described in detail, and each of the diseases involved is briefly introduced, so that readers can make a diagnosis and identification without having to refer to other literatures.