From January 1971 to December 1980 the authors observed 165 cases of chronic ulcers of the extrernities in the Department of Dermatology, Chonnam University Hospital. The results obtained can be summarized as follows. 1) During this period, the mean average percent of ulcer patients seen was 0.41 of the yearly total patients. 2) The ages of onset was quite varied with the highest group in the 5th decade. The ratio of men to women was 2.93: 1. 3) The most common predilection site was right lower extremity. 4) Leprosy, especially T-type, was the most comrnon underlying disease.