In May 1945, he surrendered to the Red Army and became a prisoner of war of the Soviet Union. Blösche was sent to a camp administered by GUPVI (Main Administration for Affairs of Prisoners of War and Internees). In early 1946, he was repatriated to the Ostrava Region in Czechoslovakia, still as an internee. In August 1946 while working at a coal mine, he was struck by a descending hoist and suffered a fractured skull and serious facial injuries. He was hospitalised in Ostrava.