The duration of chemotherapy for multiple myeloma cannot be generalized, and it needs to take into account the degree of the patient’s disease, the treatment and age, etc. Generally speaking, it is about 3 years. If the myeloma patient is older and has a more serious disease, and the prognosis is poorer, then the chemotherapy will be more difficult, and the effect will be affected, of course, the patient’s survival period will become shorter. If the myeloma patient is relatively young and has no other diseases, then the effect of chemotherapy is better and the survival period will be longer. Multiple myeloma chemotherapy can be maintained for how long there are multiple factors, the patient should be calm, it is recommended to timely visit the hospital, under the guidance of the doctor active treatment.