Pathology is the scientific study on disease including etiology, pathogenesis and pathological functional & structural changes. It is continually subject to change, revision and expansion as the application of new scientific methods illuminates our knowledge of disease. The pathology of disease and disease processes is presented in the context of modern medical practice and relevant advances in cellular and molecular biology. It consists of two parts, general and systematic pathology. The general pathology deals with the classification and causation of disease and the role of diagnostic pathology in clinical practice, it is also details the pathological processes involved in the main categories of disease. The systematic pathology gives comprehensive account of specific disease as individual organs or systems. The pathological teaching and study is major on common diseases, important diseases and clinical pathological correlation. Students should understand and study the basic theories, basic knowledge and basic skills for next studying of clinical medicine.