Medicine is an ever changing and expanding subject. Many medical diseases predominantly involve oral cavity. Drugs can have adverse effect on gum and teeth. A student of medical and paramedical, hence, is required to have working knowledge of Internal Medicine. This small treatise presents in brief the various aspects of Internal Medicine in a comprehensive format for easy understanding and retention. Clinical presentation, diagnosis, investigations, treatment and prognosis of the commonly encountered diseases are discussed in a simple and lucid language. The drug vocabulary is upto date and quite exhaustive. Photographs and graphics have not been included deliberately to keep the volume within acceptable limit. I am sure this book will be of immense help to Medical and Paramedical students and also useful for practitioners.