What does it mean to take bone marrow??

Is the routine bone marrow examination, generally found in your blood routine problems, long-term fever does not go back to the patient's examination, sometimes for bone marrow culture, not entirely to see the problem of blood disease. If you find an experienced doctor to smoke, it is not painful, because to anesthesia. Sometimes dry pumping phenomenon, more trouble, need to choose a new point to pump. The main method is to observe the morphological changes of bone marrow cells by bone marrow smear.