远红外线是一种热辐射，对人类健康具有较好的生物效应。作为一种便捷无创的重要物理疗法，远红外在疾病的诊断、治疗等临床领域中已得到广泛应用。本文收集了近年来远红外在医学临床应用方面的相关研究文献，对远红外的生物效应机制及其在疾病诊断、痛经、慢性疼痛、咳嗽、压疮、肿瘤、腹泻等疾病治疗中的应用进行了总结，为临床疾病的诊断和疗效评价提供参考依据，以促进远红外的临床应用与发展。

Far infrared (FIR) is a form of thermal radiation that has beneficial biological effects on human health. As a convenient and non-invasive important type of physiotherapy, FIR has been widely used in clinical fields such as diagnosis and treatment of diseases. The author collected many related works in the literature regarding the clinical application of FIR to elaborate on its molecular mechanism and to summarize its application in diagnosis and clinical treatments of diseases including dysmenorrhea, chronic pain, cough, pressure ulcer, tumor, and diarrhea. This review provides a reference for the disease diagnosis and evaluation of curative effect to promote the clinical application and development of FIR.