Objectives: The aim of this study was to research the average length of stay of patients who underwent surgical treatment of colorectal carcinoma in Nova Gradiška General Hospital from 2009 to 2019, to research if there is a difference in length of stay with regard to gender, and if there is a correlation between length of stay and age. Study Design: The research was organized as a cross-sectional study. Participants and methods: The study included patients who underwent surgical treatment of colorectal carcinoma identified by searching operational protocols from ten-year period. The data was obtained by searching the medical documentation and hospital information system. The analyzed variables included: gender, age, and length of stay. Results: There were 99 patients included in the research. The median length of stay is 16 days, with an interquartile range from 12 to 21 days. Although women had a somewhat longer length of stay, there is no significant difference in the length of stay regarding gender. The median age of patients is 73 years, with an interquartile range from 66 to 79 years. There is a significant positive correlation between the age and the length of stay. The most common localization for colorectal carcinoma is in the sigmoid colon and rectum. Conclusion: The median length of stay in Nova Gradiška General Hospital is 16 days with interquartile range from 12 to 21 days. There is no significant difference in the length of stay in relation to the gender. There is a significant positive correlation between age and length of stay, i.e. older patients stay longer in hospital after the treatment than younger patients.