The Department of Dermatology is a clinical specialty integrating clinical practice, teaching, and research, dedicated to the diagnosis, treatment, and research of various skin diseases, sexually transmitted diseases, and hair and nail disorders. Our department offers a comprehensive range of diagnostic and therapeutic techniques, including dermatological aesthetics, laser therapy, chemical peeling with alpha-hydroxy acids, skin biopsy, dermatologic surgery, photodynamic therapy, ultraviolet phototherapy, allergen testing, dermoscopy, and fungal examination, providing patients with comprehensive medical services. All dermatologists in our department have received standardized training at Peking University First Hospital, Peking University People's Hospital, or Peking University Third Hospital. All nursing staff in the department have undergone systematic clinical nursing and dermatological nursing training, forming a highly qualified medical team.