Why was new medical treatments developed during world war 1?

New medical treatments were developed during World War I primarily due to the unprecedented scale and nature of injuries sustained in trench warfare, which required innovative approaches to trauma care. The high incidence of infections from wounds led to advancements in antiseptics and surgical techniques. Additionally, the need to address psychological trauma, or "shell shock," spurred research into mental health treatments. The war also accelerated the establishment of organized medical services and the use of new technologies, such as X-rays and blood transfusions, which significantly improved patient outcomes.