The possibility of getting myeloma kidney damage at the age of twenty is unlikely, but it can not be ruled out that there is myeloma kidney damage, myeloma is a kind of malignant tumor of the blood system, and this disease occurs mostly in the middle-aged and old people, but there is a possibility that you can get myeloma at the age of twenty or so, and it may also cause damage to the kidneys. Myeloma is a malignant tumor of plasma cell system, the etiology is not clear, it may be related to ionizing radiation, chronic infection, heredity, industrial or agricultural toxic exposure, etc. Long-term chronic infection may also cause myeloma to occur, and some other symptoms of myeloma, such as hypercalcemia, hyperuricemia, hyperviscosity, etc., may cause kidney damage. If patients find myeloma kidney damage, it is recommended to go to regular hospitals in time and standardize the treatment under doctors’ guidance.