Dr. Onder Colakoglu, a medical gastroenterologist based in Izmir, Turkey, has an impressive 20 years of experience in his field. He is highly skilled in diagnosing and treating a wide range of gastrointestinal conditions, including gastritis, constipation, peptic ulcer disease, colon cancer, stomach diseases, liver diseases, anal fissure, cirrhosis, tourist’s diarrhea, and fatty liver, among others. Dr. Onder Colakoglu obtained his medical training from Cukurova University Faculty of Medicine and completed his specialization training in Internal Medicine at Eylul University Faculty of Medicine and Gastroenterology at Atatürk Training and Research Hospital. Dr. Onder Colakoglu is also fluent in English. His special interests lie in the diagnosis and treatment of esophageal diseases, stomach and intestinal diseases, gallbladder and tract diseases, liver diseases (including hepatitis and cirrhosis), and pancreatic diseases. Additionally, he is skilled in performing endoscopy procedures such as gastroscopy, colonoscopy, rectoscopy, and other related applications. He is a member of prestigious professional associations such as the Turkish Internal Medicine Association, Turkish Gastroenterology Association, Gastrointestinal Endoscopy Association, and Turkish Liver Research Association