Myeloma is cancer of plasma cells located in the bone marrow. Approximately 90% of myeloma patients have disease involving more than one area at the time of diagnosis, so the disease is called the most common form, Multiple Myeloma. With this application, it is aimed to provide information about what is multiple myeloma, its causes, symptoms, diagnosis and treatment methods, multiple myeloma-related diagnoses, and to provide tools that allow patients to keep track of their appointments and keep a diary of their condition. The application is prepared for informational purposes and the information in it is not a substitute for consultation with the physician.