Ole Hart Hansen was a consultant urological surgeon in Copenhagen, Denmark. He was born on 7 November 1938. He trained in surgery mainly in Copenhagen, becoming a specialist in surgery in 1974 and, in 1976, in gastroenterology. In 1980 he defended his thesis on cellular renewal in the human gastric mucosa. From 1979 to 1984 he was a consultant and chief surgeon at Saint Lucas Hospital, Copenhagen, and, from 1984 to 2004, at Hillerød Hospital (north of Copenhagen). He retired at the age of 65. He suffered a cerebral haemorrhage and died two years later, in October 2009. He was 70.