In fact, due to these and other complications and the lack of antiseptics and pain medicines, the Hippocratic Oath opted for the avoidance of surgery – unless absolutely necessary – especially when concerning surgeries that dealt with the urinary tract and more so when stone removal was the intent. Although, the urinary tract stone removal was not a necessary surgery and it appeared to be avoided in most cases, some argue that the Hippocratic Oath only wards of these procedures if the doctor holding the knife is inexperienced in that area. This idea puts forth the development of medical specialties – that is, doctors focusing on one particular area of medicine versus studying the wide array of material that is medicine. The doctors whom have become experts in the urinary tract – whom we would call urologists today – are those that could perform the heightened risk procedure of stone removal. With this reliance on specialized doctors of the urinary tract, some believe that urology itself was the first definable expertise of medical history.