Proven, competent, and easy to understand, the author team provides information about the causes, symptoms, and treatment options for the thyroid disease Hashimoto's thyroiditis. The guide is continuously updated and is currently in its 7th edition. For many affected individuals, having a diagnosis of Hashimoto's thyroiditis after a long search is already a success. However, this brings many questions. Why did I become ill? How will the disease progress? What can I do for my well-being? All important questions that may arise for those diagnosed with Hashimoto's thyroiditis are addressed in this medical guide. In addition to medication treatment, the topics of nutrition, the role of antibodies, and the psychological aspects of the disease are discussed in detail, along with practical tips for everyday life. Those affected by Hashimoto's will learn what to consider during a doctor's visit, how to recognize hypothyroidism or hyperthyroidism, what Hashitoxicosis is, and what to keep in mind for a planned pregnancy, as well as considerations regarding medication intake, vaccinations, exercise, and travel. Dr. Leveke Brakebusch founded Germany's first internet portal on Hashimoto over fifteen years ago, which has since grown steadily and serves as a lively discussion forum on the topic. Affected individuals have the opportunity to exchange ideas and connect, and additional links provide helpful information.