Bone marrow donation is to donate hematopoietic stem cells from the bone marrow. Under the current medical level, bone marrow donation has no significant effect on healthy donors because the process of bone marrow donation is to inject recombinant human granulocyte colony-stimulating factor into the patient’s body beforehand, which can mobilize the hematopoietic stem cells from bone marrow to the peripheral blood, a process known as bone marrow mobilization, and to separate the hematopoietic stem cells out of the patient’s body by using stem cell separators. The process of using a stem cell separator to separate the blood stem cells from the peripheral blood and infusing the separated blood stem cells back into the patient to help rebuild the patient’s hematopoietic and immune systems is called bone marrow transplantation. For bone marrow donors, giving a certain amount of bone marrow has no significant effect on their health because the human body’s bone marrow has a strong compensatory function that allows it to return to the level it was at before the bone marrow donation in a relatively short period of time. Therefore, healthy bone marrow donors do not need to worry about it, and there is no obvious effect on their health.