A patient is immunocompromised when one of the parts of their immune system is not functioning for any of a number of reasons. Immunocompromised patients are very susceptible to infection and are vulnerable to the rapid spread of diseases such as cancer. There can be several reasons why a patient might be immunocompromised, but in any event it is the result of a lack of white blood cells or the inability of a patient to produce antibodies. Some conditions that result in a patient being immunocompromised are:
In addition, transplant patients must have their immune system suppressed by drugs to prevent the immune system from destroying the transplanted organ.
See also Immunosuppresants