Dr. Tsakmakas Dimitrios is a proctologist specialized in all anorectal disorders (pilonidal cyst, anal fissure, fistulas) and operates a private practice in Thessaloniki. He is a graduate of the Medical School of the University of Thessaly. He began his residency in 2004 as a general surgeon at Panagia Hospital in Thessaloniki for six years. In 2010, he obtained board certification in General Surgery and subsequently served as a Surgeon - Consultant in endocrine surgery at the Department of Endocrine Surgery of Addenbrooke's University Hospital in Cambridge, United Kingdom. He collaborates with all private clinics in the city, including the Medical Diavalkaniko Center, Euromedica Blue Cross, Agios Loukas, Vioclinic Thessaloniki, Euromedica General Clinic, and Genesis Clinic. In March 2012, he earned his PhD title from Aristotle University of Thessaloniki with a dissertation entitled "Correlation of Oxidative Stress and Thyroid Diseases." He worked as an associate of Professor Ioannis Kanellos, Professor of Surgery at Aristotle University of Thessaloniki, for one year and with the Director of Surgery at Panagia Hospital, Dr. Michail Naoum, until 2015, as well as with the former Director of the Surgical Clinic at General Hospital of Ioannina "G. Hatzikosta," Dr. Evangelos Tsimogiannis, from 2013 to the present.