Patient: 74 years old, diagnosed with myeloma (light chain K type) in October 2009, the results of the examination at that time were: blood routine was basically normal, serum immunofixation electrophoresis was: M protein was light chain K type, the total amount of 24-hour urine light chain K was 2g, bone penetration plasma cells was 7%, bone marrow chromosome examination results: 14q32 region (IGH) probe hybridization observed displaced signal, all other normal. x-ray. Diagnostic imaging: (1) Elliptical hypointense shadow in the right 2nd anterior rib area, with prolonged aortic encounter curvature. (2) Small lamellar dense shadow in the lower part of the left skeleton, thoracolumbar spine and bilateral hip osteophytes. Hyperplasia. (3) The inner and outer edges of the cranial plate barrier were not clear, but the rest were normal. Renal ultrasound findings were:Echo enhancement and diffuse lesions. Creatinine 130. Liver function was normal. After two courses of treatment with Vanco plus Demi, urine light chain dropped to 1g/24h. and then changed to oral medication: Marfalan (2mg/dose. 3 times/day. 7 days). Prednisone (20mg/dose. 3 times/day. 7 days.) Reactive stop(100mg/day). Goodling 800mg/day. A total of 6 courses of treatment were given. The effect of each course of treatment was better. All indicators have decreased. The results of the recent review were: blood routine was basically normal, serum immunofixation electrophoresis was negative, urine light chain K dropped to 0.25g/24h, creatinine was 103, blood routine was basically normal. The whole body bone film taken at the local hospital was basically normal. In view of the above, may I ask the expert whether I need to continue the treatment? If I need to continue treatment, should I still take the above mentioned medication? Do I need to adjust the dosage? Or do I need to suspend it for a while? Do I need to wait for the indicator to increase before taking the medication again? I would like to ask you to give me some guidance in your busy schedule. Doctor: Your current diagnosis of light chain multiple myeloma is clear, and you can consider maintenance treatment after effective treatment.