Department Introduction Department Overview The dermatology and venereology specialty at Ruijin Hospital was established in 1933; in 1945, it became an independent department with outpatient, inpatient, and treatment rooms. In 1952, it established the earliest "dermatopathology laboratory" in China; in 1957, the "mycology laboratory" was established; in 1970, the "laser room" was established, being the first in China to conduct research on phototherapy for skin diseases and laser protection; in 1974, the "dermatology laboratory" was established, renamed the "immunology laboratory" in 1984, conducting cellular immunity, humoral immunity, and immunofluorescence testing; in 2021, the "medical skincare research laboratory" was established. The ward has 39 approved beds. In addition to general specialty clinics, 16 specialized disease clinics have been established, and various forms of "multidisciplinary team" (MDT) care are provided. The department is equipped with comprehensive dermatological diagnostic and therapeutic equipment as well as aesthetic treatment and nursing equipment. Currently, the Department of Dermatology at Ruijin Hospital is a National Key Clinical Specialty, a National Clinical Pharmacology Base and Continuing Medical Education Base, the editorial unit for the nationally unified textbook "Dermatovenereology" under the Ministry of Health, and a National Residency and Specialty Training Base. It is the institution of the former Chair of the Chinese Medical Association Dermatology and Venereology Branch and the institution of the Chair of the Shanghai Medical Association Dermatology Professional Committee. In the past 5 years, it has ranked 6th–8th in the "China Best Specialty Reputation Rankings." The department has undertaken two Key Projects of the National Natural Science Foundation of China, one international (China-US) collaborative project, one major (cultivation) project, and multiple general and youth projects. Over the past two decades, the department has developed a disciplinary advantage focused on the diagnosis and treatment of complex, refractory, and critical skin diseases, and has established clinical and research directions in psoriasis, bullous diseases, dermatomyositis, atopic dermatitis, chronic urticaria, and cutaneous lymphoma.