Blood cancer is a serious medical condition that affects the blood and bone marrow, leading to abnormal cell growth. While the term "blood cancer" is commonly used, there are several other synonyms that refer to this type of cancer, including leukemia, lymphoma, and myeloma. Leukemia is a cancer of the blood and bone marrow, whereas lymphoma affects the lymphatic system. Myeloma, on the other hand, is a cancer that primarily affects the plasma cells. Other lesser-known synonyms for blood cancer include Hodgkin's disease, non-Hodgkin's lymphoma, and multiple myeloma. Regardless of the terminology used, it is important to recognize the severity of blood cancer and seek prompt medical attention.