Ultrasonography of patients with venous ulcers showed subcutaneous tissue calcification (STC)in some patients. However, calcification is rarely included in venous ulcer-related changes. The aim of this study was to evaluate the prevalence and morphological changes of STC in patients with ultrasonographically diagnosed with venous ulcers. A total of 80 legs of 40 patients with venous ulcers (28 women and 12 men, mean age 48 years, range 18-83 years) were included in this study. After ultrasonographic evaluation of the patient's deep, superficial, and perforating veins, continue to use ultrasonography to examine the patient's subcutaneous tissue for the presence of STC. According to the CEAP (Clinical, Etiological, Anatomical, Pathophysiological) classification of Group C, 18 legs were classified as C5 and 62 as C6. STC was present in 38 of the 80 legs, most of which were patients classified as C6.STC are easily detected by ultrasound, especially in the injured area of the leg in C6 patients. STC may be associated with chronic inflammation of the subcutaneous tissue. It is recommended to remove it from the ulcer bed to promote ulcer healing and prevent recurrence. Further studies are needed to determine its prognostic significance and other possible clinical implications.