Onychomycosis is a fungal nail infection caused by dermatophytes, nondermatophytes, and yeast, and is the most common nail disorder seen in clinical practice. It is an important problem because it may cause local pain, paresthesias, difficulties performing activities of daily life, and impair social interactions. In this continuing medical education series we review the epidemiology, risk factors, and clinical presentation of onychomycosis and demonstrate current and emerging diagnostic strategies.

中文翻译：

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灰指甲病

甲癣是由皮肤癣菌，非皮肤癣菌和酵母菌引起的真菌性指甲感染，是临床实践中最常见的指甲疾病。这是一个重要的问题，因为它可能导致局部疼痛，感觉异常，执行日常生活活动的困难并削弱社交互动。在这个继续医学教育系列中，我们回顾了甲癣的流行病学，危险因素和临床表现，并论证了当前和新兴的诊断策略。