 NAMASKARA NANISRO DOCTOR MALLIKARJUN KALISHATI ANTA I am a consultant hematologist, hematoconcologist and bone marrow transplant physician at Manipal Hospital Bangalore Now, if we admit one such patient for bone marrow transplantation first we give them conditioning chemotherapy, stem cell infusion and then we will wait for those stem cells to engraft So, the whole process may take about 3-4 weeks So, it will take about a month In some patients, the count recovery is early and in some patients it may take longer Now, in otologous bone marrow transplantation usually engraftment occurs by 2-3 weeks in measure of the patients In allogenic bone marrow transplantation it may take a little longer, it may take about 3-4 weeks So, it will not have fixed duration In all patients, if engraftment occurs on the same day it will not guarantee patients may take variable number of days but majority of them will engraft between 3-4 weeks of time