The symptoms of bone marrow cancers can vary widely depending on factors such as the type, subtype, initial location in the body, and aggressiveness of the disease.

Symptoms of Multiple Myeloma:
Common symptoms that may be observed in multiple myeloma include:
* Bone pain or pathological fractures
* Chronic fatigue
* Recurrent infections
* Changes in urinary habits (frequent urination)
* Confusion or changes in consciousness
* Excessive thirst
* Nausea or vomiting
* Unexplained weight loss

Symptoms of Leukemia:
Symptoms that may be associated with leukemia include:
* General weakness and fatigue
* Shortness of breath
* Fever
* Bone and joint pain
* Unexplained weight loss
* Night sweats
* Enlargement of lymph nodes or spleen
* Frequent or recurrent infections
* Pale skin (due to anemia)
* Easy bruising or prolonged bleeding from minor cuts
* Body aches