Аннотация
The professional experience of a doctor is the basis of his activity. A step-by-step mechanism for the formation of experience in medicine is given. The negative and professional experience of the doctor is presented in comparison. The connection of the doctor's experience with the analysis of errors is shown. The components of experience are considered. The phenomenon of stereotype and its role in the experience and occurrence of errors in doctors are discussed. The structure of the causes of a single doctor's error is given. The importance of understanding the relationship of error and experience in solving the problem of errors in medicine is emphasized.