causes for myeloma cancer
Or, these symptoms may be caused by a medical condition that is not cancer. Anemia is a low level of red blood cells, which happens when myeloma plasma cells suppress or crowd out healthy red blood cells. Fatigue is usually caused by anemia and occurs in most people with myeloma. Bone pain is a common symptom. Myeloma cells grow in the bone marrow, the spongy tissue inside of the bone, and cause local bone damage or generalized thinning of the bone, called osteoporosis. This makes the bone more likely to break. The back or ribs are the most common sites of bone pain, but any bone can be affected.