Nandrolone is widely used in the medical field for treating conditions like osteoporosis and anemia. It helps in increasing bone density and red blood cell production, making it beneficial for patients recovering from severe injuries or surgeries. Additionally, it is used to combat muscle wasting diseases, aiding in muscle mass preservation. In veterinary medicine, it is employed to improve appetite and weight gain in animals. Athletes and bodybuilders sometimes misuse it for its anabolic effects, despite it being banned in competitive sports due to performance-enhancing properties.