The most important complication that may happen after transplant is rejection of the kidney or pancreas. It is possible your body will recognize your new organ as a foreign object and attempt to attack it.
You can help prevent rejection by taking immunosuppressant drugs. These drugs help your immune system accept the transplanted organ.
You may have to take immunosuppressants for the rest of your life. In addition to anti-rejection medications, you may have to take additional medications to treat side effects and prevent complications.
Regular check-ups will help find and treat signs of rejection.