The aim of this book is to make the reader familiar with the characteristic signs of disease, including abnormalities of the skin, nerves, eyes, hands, feet, testes, and bone. Early identification of the disease is critical to prevent patient disability and establish appropriate therapy. Emphasis will be given to the current diagnostic tools to identify and quantify the organ damage, including electrophysiology, ultrasonography, magnetic resonance imaging, laboratory tests, and histopathology. Specific topics such as leprosy and pregnancy, leprosy and HIV infection, epidemiology, and leprosy control will also be covered.