@dazlin Yes, I have had two bone marrow biopsies. One was in October 2017, one in October 2019 by two different doctors. In the 1st one they diagnosed the MGUS, but the fine print said it was considered low level of Non-Hodgkin's lymphoma, which the doctor said was MGUS. I had the 2nd done by a Mayo Clinic trained oncologist here in my new state. I also had a kidney biopsy done because we had to make sure my kidneys were not being affected by the multiple myeloma at this point. I had no issues with bone marrow biopsies, no complications at all. If you have questions on that I know there is another discussion that talked about bone marrow biopsies, and I can look it up tomorrow when I'm on my big computer.