"Fast-track"-surgery -- also called "fast-track"-rehabilitation -- is an interdisciplinary, multimodal concept to accelerate postoperative reconvalescence and reduce general morbidity. "Fast-track"-rehabilitation focuses on preoperative patient education, atraumatic and minimal-invasive access to the operative field, optimized anesthesia under normovolemia and prevention of intraoperative hypoxia and hypothermia, effective analgetic therapy without high systemic doses of opioids, enforced postoperative patient mobilisation, early postoperative oral feeding, and avoidance of tubes and drains. "Fast-track"-rehabilitation plans have been published for numerous operative procedures in general-, visceral-, vascular- and thoracic surgery, as well for orthopaedic, urological and gynaecological operations. Until today, "fast-track"-rehabilitation was evaluated most thoroughly in elective colonic surgery. Here, the multimodal regime decreased general morbidity from 20 - 30 % to below 10 %, while postoperative hospital stay was reduced from 10 - 15 to 2 - 5 days. "Fast-track"-rehabilitation for major surgery should be evaluated in randomised, controlled trials.