The purpose of this article is to provide a simple explanation of the accreditation process applied to the field of pathology. After defining some basic notions in the field of quality in health, and then detailing the accreditation process in general, we focus on the specific field of pathology with the implementation of the quality management system, the validation or verification of the methods and then the audit of the structure by the French committee for accreditation COFRAC. We end with some general considerations, insisting on the benefits brought by the entry of a structure into this accreditation process.