低热是临床上比较常见的症状,可由多种原因引起。但在煤矿工人中发现有部分病因不明的低热病人,迁延不愈,影响生产。原因不明的矿工低热是否与接触矽尘有关,是否为煤矽肺的前驱征兆,尚未见报道。为了探讨这种低热的病因及其与矽肺发病的关系,寻求矽肺早期诊断的线索,我们对51名煤矿工人低热病人与30例矽肺病人和16例正常人进行了机体免疫状态的对比观察. Low fever is a more common clinical symptoms, can be caused by a variety of reasons. However, some mine workers found that some of the etiology of low fever patients, prolonged unhealed, affecting production. Whether the unexplained miner’s low heat is related to exposure to silica dust is a precursor to coal silicosis, and it has not been reported yet. To explore the causes of this low fever and its relationship with silicosis and to seek clues to the early diagnosis of silicosis, we compared the immune status of 51 coal mine workers with low fever patients, 30 silicosis patients and 16 healthy controls.