Dr. Sinan Aslan is a General Surgery Specialist at Mersin City Training and Research Hospital, Türkiye. He graduated from Istanbul University Cerrahpaşa Faculty of Medicine and completed his General Surgery residency at Istanbul Medeniyet University Göztepe Training and Research Hospital. His clinical and academic interests include bariatric and metabolic surgery, gastrointestinal surgery, emergency surgery, postoperative complications, surgical outcomes, diagnostic and prognostic biomarkers, and immunonutritional indices. He has contributed to international and national peer-reviewed publications on thyroid carcinoma, colorectal cancer biomarkers, hepatobiliary surgery, rare gastrointestinal conditions, ileus, mesenteric panniculitis, and complications after laparoscopic sleeve gastrectomy. His current research focuses on risk stratification, prediction models, and outcome optimization in general and bariatric surgery.