Lymphoma, also known as lymphoma, is a malignant tumor of human immune system. Lymphoma is clinically divided into stage I, II, III and IV, and at the same time, lymphoma is divided into many different subtypes, and the cure rate of stage III of each subtype has obvious difference. Stage III cure rate is also closely related to the patient’s own condition and the treatment measures taken, for example, for the same diffuse large B-cell lymphoma, if it is a young patient in clinical stage III, applying the treatment of Merovia or accepting the treatment of autologous hematopoietic stem cell transplantation, the cure rate is more than 50%, and the effect is better. However, if it is an elderly patient with underlying diseases, such as myocardial infarction, coronary artery disease, hypertension, etc., he cannot receive normal dose of chemotherapy or autologous hematopoietic stem cell transplantation, so the cure rate of the third stage is relatively low, usually not more than 20%.