Patients with sinusitis conditions are at risk of developing cancerous conditions. If the patient’s sinus inflammatory condition exists for a long time, persists, or recurs excessively frequently, it may cause gradual changes in the mucous membrane in the sinus cavity, which gradually transforms into squamous epithelial cells and is the basis for further malignant lesions, and some patients may then develop further cancerous lesions in the sinus region. Patients with some suspicious symptoms, including recurrent nasal discharge with blood or nasal discharge with blood on aspiration, progressively aggravated nasal congestion, swelling and uncomfortable feeling in the jaw, or special odor and foul feeling in the nose, need to pay attention to a careful and comprehensive examination of the whole nasal cavity and sinuses to investigate whether there is a malignant lesion situation.