rejection (acute and chronic)

Rejection in organ transplantation occurs when the recipient's immune system recognizes the donated organ as foreign and attacks it. Acute rejection happens suddenly, usually within days to months, as the immune response intensifies against the new organ, potentially causing damage. Chronic rejection develops over years and involves gradual deterioration of the organ due to ongoing immune activity and tissue changes. Both types are immune responses meant to protect the body but can jeopardize the transplanted organ’s function if not managed with immunosuppressive medications. Proper medication and monitoring help reduce the risk of rejection and prolong the success of the transplant.