INTRODUCTION: Pathophysiology is described as the study of the biological and physical manifestations of disease as they correlate with the underlying abnormalities and physiological disturbances. Pathophysiology does not deal directly with the treatment of diseases but it explain the processes within the body that result in the sign and symptoms of the disease. In short pathophysiology means study of the nature and cause of disease or the result of disease in the body. Pathophysiology is a required area for nearly all healthcare professional school and college programs in India and other countries. In short pathophysiology is an advanced field of study beyond anatomy and physiology and it’s concerned with the study of diseases, infections, illness and dysfunctions in the human body. DISEASE: The term disease broadly refers to any condition that impairs normal function i.e functional abnormality. It may be cause by external factors such as infectious disease or it may be caused by...