Abstract:Fungal infection has become the greatest threat to public health, especially invasive fungal diseases (IFDs). The degree of immunodeficiency is closely related to the type and severity of fungal infection, and also determines the clinical manifestations, imaging changes, diagnosis and treatment of IFDs. Only by mastering these similarities and differences can we make accurate diagnosis and correct treatment. This paper analyzes the differences in diagnosis and treatment of non granulocytopenia patients with pulmonary IFDs from the aspects of pathogenesis, diagnostic criteria, clinical manifestations and imaging changes, diagnostic techniques and treatment plans.