Background: The purpose of this study was to examine our experience with Hartmann’s procedure including the reversal rate and the results of the second-stage operation for restoration of intestinal continuity. Variables that might be associated with the mortality of Hartmann’s procedure and influence the decision making regarding the reversal operation were also analyzed. Patients and Methods: We retrospectively reviewed medical records of 151 consecutive patients who underwent Hartmann’s procedure between 1998 and 2005 in our institution. Charts were reviewed for demographics, surgical indications, complications, mortality, reversal rate, and the results of the reversal operation. Results: There were 95 male and 56 female patients, with a mean age of 64.9 years. All patients underwent Hartmann’s procedure for left-sided colonic pathology. Left-sided colonic cancer (40.4%) and complicated diverticular diseases (23.8%) were the most frequent indications. Complications occurred in 44 patients (29.1%), and the mortality rate was 11.9% (18/151). Comorbidity (≧2) was the only predisposing factor for an increased mortality (p = 0.006). A total of 88 patients (66.2%) underwent the reversal procedure. The median interval between the initial operation and the second procedure was 107.8 days. The complication rate was 13.6% (12/88), with no serious complications such as anastomotic dehiscence noted. No deaths occurred in this group. Advanced age (p = 0.038), comorbid disease (p < 0.01), and malignancy (p < 0.01) were associated with significantly lower rates of colostomy reversal. Conclusion: Hartmann’s procedure remains valuable in patients with a life-threatening left-sided colonic disease with acceptable morbidity and mortality. Especially in younger patients, patients with benign abdominal pathology, and patients with fewer comorbid diseases, the second-stage operation for restoration of colonic continuity is safe, and associated with minimal mortality and morbidity.