Lymphoma is categorized into two main types: Hodgkin lymphoma and non-Hodgkin lymphoma. The specific pathological classification of lymphoma is very complex, involving dozens of types. Differences in the pathological type and stage of the disease can significantly impact the prognosis, including variations in patient sensitivity to chemotherapy or radiotherapy, and consequently, different survival periods. Patients with highly aggressive lymphomas typically have a poorer prognosis, while those with indolent lymphomas usually have a prolonged disease course and slow progression, leading to a longer survival period, sometimes spanning decades. Thus, the survival period varies greatly depending on the pathological type.