This document discusses phimosis and circumcision. It provides background information on phimosis including definitions, types, epidemiology, embryology, anatomy, etiology, pathophysiology, prognosis, history and physical examination. It also discusses the medical and surgical treatment of phimosis, including conservative surgical alternatives and conventional male circumcision. The document is authored by multiple professors and assistant professors from the Department of Urology at Govt Royapettah Hospital and Kilpauk Medical College in Chennai, India.