[Medical errors in the continuous improvement of quality].

The increase in medical errors during the last four decades of past centuries can be attributed to several causes: the human fallibility always present, concern in quality and continuity of physician-patient relationship and to the increased advance in technology innovation. These errors attract the attention of Agencies and Organizations involved in Healthcare Quality. From the work of these a series of recommendations were issued for the prevention of medical errors. The action level is a systemic one, due to the characteristic of the healthcare services.