Multiple myeloma IgA usually refers to one of the types of multiple myeloma. Multiple myeloma can generally be categorized according to the immunoglobulins secreted by myeloma cells, which can usually be classified into the categories of IgG type, IgA type, IgD type, IgM type, IgE type, biclonal type, and light-chain type, as well as κ-type and λ-type according to the light-chain type of the M-protein. Multiple myeloma IgA is a malignant hematological disease, which may be caused by molecular and cytogenetic abnormalities or infections, as well as ionizing radiation, etc., and is prone to symptoms such as elevated blood calcium, enlarged lymph nodes, fever, bone pain, liver insufficiency, etc. Patients can be treated with chemotherapy or radiotherapy, which can be used to treat multiple myeloma IgA. Patients can be treated with chemotherapy or radiotherapy, and the drugs include bortezomib, lenalidomide, dexamethasone and so on. Patients need to go to the hospital in time and use medication under the guidance of physicians.