Engraftment is the process by which transplanted cells, tissues, or organs begin to grow and function in a new host. This is commonly seen in procedures like bone marrow transplants, where healthy stem cells are introduced into a patient to restore their blood cell production. Successful engraftment is crucial for the patient's recovery and overall health. During engraftment, the transplanted cells must adapt to the host's body and establish connections with existing tissues. This involves overcoming challenges such as the host's immune response, which may recognize the new cells as foreign. Monitoring engraftment is essential to ensure that the transplant is successful and to manage any potential complications.