An application of plasminogen for preventing, treating, improving and/or eliminating radiation and chemical damage and associated diseases in a subject, further providing a novel treatment strategy for treating different types of radiation and chemical damage.本發明涉及纖維蛋白溶酶原在預防、治療、改善和/或消除受試者放射和化學損傷及其相關病症中的用途,進而為治療不同類型的放射和化學損傷提供全新的治療策略。