This paper reviews the concept of professional autonomy from anhistorical perspective. It became formalised in the United Kingdom onlyafter a long struggle throughout most of the nineteenth century. In itspure form professional autonomy implies unlimited powers to undertakemedical investigations and to prescribe treatment, irrespective of cost.Doctors alone should determine the quality of care and the levels ofremuneration to which they should be entitled. In the second half of thetwentieth century a steady erosion of professional autonomy occurred inthe United Kingdom. The (...) level of remuneration has been restricted formost doctors for nearly fifty years, whilst the costs of health carehave steadily reduced the doctor's ability to provide unrestricted carewithin the health care system. Reorganisation of the National HealthService in 1983 and 1991 has substantially eroded professional autonomy,to the point where research developments, clinical judgement and ethicalstandards are all now being placed at risk. (shrink)