Lymphoma is lymphoma, and lymphoma behind the ear refers to lymphoma that occurs in the lymph nodes behind the ear. For the early treatment of lymphoma, first of all, various examinations should be perfected. The routine examinations include chest CT, abdominal CT, PET-CT, bone marrow aspiration and other related examinations to determine the patient’s lymphoma stage according to various examinations, and after the stage is determined, then the corresponding treatment is given. At the same time, pathological examination should be improved to clarify whether the lymphoma is Hodgkin’s lymphoma or non-Hodgkin’s lymphoma. If the lymphoma is in the early stage, it can be treated with radiotherapy alone, which has a high cure rate. In case of non-Hodgkin’s lymphoma, in addition to radiotherapy, chemotherapy is usually added because non-Hodgkin’s lymphoma is often an aggressive lymphoma throughout the body and radiotherapy alone is not effective and needs to be combined with chemotherapy.