What is the big problem with organ rejection?

The big problem with organ rejection is that the recipient's immune system may recognize the transplanted organ as foreign and attack it, leading to failure of the organ. This can occur even with immunosuppressive medications, which are used to minimize rejection but can also increase the risk of infections and other complications. Managing rejection is a complex challenge that requires careful monitoring and long-term medical care. Ultimately, successful organ transplantation hinges on balancing rejection prevention with overall health.