General surgery (e.g. appendectomy, gallbladder removal) Vascular surgery (e.g. varicose vein surgery, aortic aneurysm repair) Colo-rectal surgery (e.g. stoma formation) Surgical Oncology (e.g. breast surgery, tumour resections) Orthopaedic surgery (e.g. knee or hip replacements, fracture repair) Urological surgery (e.g. prostate surgery) Day surgery (or ambulatory surgery, where a patient is discharged within 24 hours)