Objective: With the immunodeficiency from the disease itself and the toxicity of the drug in the chemotherapy, the patients with hematologic malignancy are in a high risk of mouth ulcer.

• 目的:血液肿瘤患者因免疫缺陷,容易发生口腔感染,在治疗的过程中又需要使用多种粘膜毒性的药物,使患者容易发生口腔溃疡。