The Japanese Dermatological Association prepared guidelines focused on the treatment of skin ulcers associated with connective tissue disease/vasculitis practical in clinical settings of dermatological care. Skin ulcers associated with connective tissue diseases or vasculitis occur on the background of a wide variety of diseases including, typically, systemic sclerosis but also systemic lupus erythematosus (SLE), dermatomyositis, rheumatoid arthritis (RA), various vasculitides and antiphospholipid antibody syndrome (APS). Therefore, in preparing the present guidelines, we considered diagnostic/therapeutic approaches appropriate for each of these disorders to be necessary and developed algorithms and clinical questions for systemic sclerosis, SLE, dermatomyositis, RA, vasculitis and APS.Key words: antiphospholipid antibody syndrome, dermatomyositis, rheumatoid arthritis, systemic lupus erythematosus, vasculitis.Correspondence: Hironobu Ihn, M.D., Ph.D., Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan. Email: ihn-der@kumamoto-u.ac.jp This is the secondary English version of the original Japanese manuscript for The wound/burn guidelines -4: Guidelines for the management of skin ulcers associated with connective tissue disease/vasculitis published in