This book Introduction on Diabetes Mellitus provides a concise coverage of the concepts related to diabetes in terms of different types of diabetes, causes, signs and symptoms, tests and diagnosis, complications, prevention and treatment. Health is a positive concept emphasizing social and personal resources as well as physical capabilities. Disease is a term describing any deviation from the normal state of health or wellness. It includes physical, mental and social conditions. Both health and disease are coeval with life. Since archaic time, human are interested in trying to control diseases. Medical are involved in various ways to cure human disease and control the disorders in order to bring relief to the sick. In order to create awareness and to provide ample information to human society, this book has been designed carefully with the recent available modern tests to diagnose the disease, advanced methods to treat the complications covering all treatment and therapies such as dietary management, yoga, meditation, acupressure, acupuncture, massage therapy, aroma therapy, music therapy, biofeedback, ayurvedic herbal medicine, homeopathy and allopathic medicine.