The diagnosis and treatment of skin Diseases is a comprehensive and systematic monograph on the diagnosis and treatment of skin diseases, which covers the basic theory, diagnostic techniques and treatment methods of skin diseases, and provides a valuable reference for clinicians. First of all, this book describes the anatomy and histology of the skin in detail, and makes an in-depth analysis of the structure, tissue and ultrastructure of the skin, which lays a solid theoretical foundation for the follow-up diagnosis and treatment of skin diseases. Then, this book introduces skin physiology, including skin barrier, secretion, thermoregulation, sensation, immunity, respiration, endocrine and metabolism, so that readers have a comprehensive understanding of the function of skin. In the aspect of skin disease symptom diagnosis and laboratory examination, this book enumerates in detail the common symptoms and signs of skin diseases, and introduces a variety of diagnostic techniques and methods, such as fungal examination, allergen detection, ultraviolet detection and so on. it provides a practical diagnostic tool for clinicians. In terms of treatment, this book introduces the basic treatment of skin diseases, including internal drug therapy, external drug therapy, cryotherapy, infrared therapy, laser therapy and so on. at the same time, it also introduces the advanced treatment methods such as photon rejuvenation technology and electrolytic therapy, which provides a variety of treatment options for clinicians. In addition, this book also makes an in-depth discussion on bacterial skin diseases, parasites, insect dermatoses and other common skin diseases, and introduces the pathogenesis, clinical manifestations and treatment of various diseases. so that readers have a more in-depth understanding of these diseases. Generally speaking, the diagnosis and treatment of Dermatology is a rich and practical monograph on dermatology, which is suitable for dermatologists, medical students and related researchers.