This paper does not focus on the use of one of the quality management methods applicable in healthcare. The aim of the paper is to introduce the Lean and Six Sigma method in healthcare in the context of professional studies dealing with this issue. The paper also presents the practical applications of the method used in various hospital facilities around the world. It is important to note that this is a method that is new in the field of healthcare, specifically in hospitals, and it brings a new perspective on how it is possible to slim down the method of management in hospitals and their departments. Based on the given studies presented in the paper, the author of the paper focuses primarily on its applicability in practice in healthcare. This article is intended to provide a basic understanding of the given method applicable in the management of health care and various hospital departments.