CD20 value, generally refers to CD20 test.CD20 refers to a molecular marker, mainly found on the surface of B lymphocytes.CD20 test can identify T-cell and B-cell lymphoma. CD20 can be expressed in longer stages of B cell growth and development, such as acute lymphoblastic leukemia in leukemia, and common B cell lymphomas including diffuse large B cell lymphoma, follicular lymphoma, small B cell lymphoma, chronic lymphocytic leukemia, etc., which are all B cell tumors, and some of the multiple myelomas can also express CD20. The target tumor cells all contain a large amount of CD20. molecular targeted therapy can be performed with CD20 monoclonal antibody, CD20 monoclonal antibody can then bind to the CD20 receptor, resulting in the destruction of the lymphoma, thus achieving the purpose of treating lymphoma. If patients have CD20 positive, it is recommended that patients actively cooperate with doctors for treatment, don’t have too much mental pressure in daily life, choose the right treatment plan according to their own condition under doctors’ advice, choose easy-to-digest food during dietary regimen as much as possible, and ensure sufficient sleep time.