Pathology (derived from the Greek pathos, suffering, disease, and logia, science, study) is the study of diseases in certain asspects. This study can be done by some methods such as clinical, biochemical, physiological, bacteriological, immunological etc. Therefore the term pathology has broad meaning.

The General Pathology is a broad and complex scientific field which seeks to understand the mechanisms of cell and tissue injury and the mechanisms of defense and repair the body is proposed.