This is the first book to specifically deal with hidradenitis suppurativa, a common but overlooked disease that regularly causes significant problems for both patients and doctors. Many patients experience it as a painful and disturbing skin disease, which responds poorly to therapy, rendering it similarly disheartening to doctors from different specialties. The first section of this book presents the best current knowledge about diagnosis, pathogenesis and complications. The second section offers comprehensive guidelines on diagnosis and therapy. The book will assist doctors in providing a broader range of treatments for their patients. To increase the practical usefulness of the book, a description of the patients' perspective and patient information is included. Mainly written for dermatologists, surgeons, plastic surgeons, gynaecologists, proctologists, and patients this book is also of interest to anyone with an academic or practical interest in hidradenitis suppurativa.