Years 1914–1940 marked a significant worldwide development of transfusion medicine. On gaining independence, Poland became a place, where blood transfusion started to be performed and facilities were established, where physiological and pathological processes of such a treatment were examined. Attempts were made to organize blood‑donation facilities, and the first legal regulations concerning blood donation were introduced. Poles, following the worldwide trend, created blood transfusion devices and made research on practical usability of the banked blood. Articles concerning the history of hemotherapy and the First World War experiences were published in “Lekarz Wojskowy”, treatment methods and tools were promoted and original transfusion methods were presented. In 1930s, during the increasing political upheaval in Europe, requirement for blood service organisation was discussed in “Lekarz Wojskowy” along with promotion of blood donation. The magazine played a significant role in promotion of blood transfusion know‑how among physicians during the twenty‑year interwar period in Poland.