A lung transplant is a surgical procedure that replaces a diseased or damaged lung with a healthy lung from a donor. This operation is typically considered for patients with severe lung conditions, such as chronic obstructive pulmonary disease (COPD), pulmonary fibrosis, or cystic fibrosis, who have not responded to other treatments. The success of a lung transplant depends on various factors, including the patient's overall health and the compatibility of the donor lung. After the surgery, patients must take immunosuppressive medications to prevent their body from rejecting the new lung, and they require regular follow-up care to monitor their health.