With contributions from top experts in research and treatment, this book provides a comprehensive analysis of self-injurious behavior (SIB) in people with Autism Spectrum Disorder (ASD) or related developmental disabilities, and the different methods available to treat them. Medical and behavioral researchers have studied SIB for over 50 years, but many practitioners and parents are still unfamiliar with the wide range of contributing causes and treatment options. Beginning with an explanation of SIB and its various forms, the book outlines the many possible underlying causes of self-injury, such as hormonal imbalance in teenagers, gastrointestinal conditions, and stress. The book asserts that a multi-disciplinary approach when uncovering the causes of self-injury can lead to successful treatment strategies. It goes on to explain the treatment options available for SIB, including medical, psychiatric, nutritional, and behavioral approaches, and considers how an integrative approach to treating self-injury may be effective for many individuals. Self-injury is present in almost half of those with ASD, and it is one of the most challenging and difficult-to-treat behaviors. This book will be an invaluable addition to the shelves of any professional working with people with ASD or related conditions, as well as parents and carers.