First, generally speaking, from the time of storage, it will be discharged after 26 days of semi-compliance and 28 days of full compliance, which means that the white blood cells can be discharged when they reach 1 thousand. Of course, this is just the usual situation. If there are other infections, there will be delays and individual differences.

Second, donors need to go through hospitalization procedures. If it is a relative donor, it will also collect bone marrow while collecting hematopoietic stem cells. After bone marrow surgery, it takes about six hours to reinfuse the donor blood collected in advance and replenish electrolytes. And awake from anesthesia, need to be hospitalized for observation. Usually stay in hospital for a day or two.

Third, how much bone marrow the donor needs to extract during the whole transplant process is determined by the height and weight of the patient, and the doctor has a formula to calculate it.