Introduction: The aim of this study was to present our 20-year experience regarding open adrenalectomy (OA) during laparoscopic era in a developing country Turkey. Materials and Methods: A retrospective and descriptive study of patients with adrenal mass undergoing OA in the surgery department of our hospital, between January 1993 and January 2013, was carried out. All operations were performed by two surgeons. Results: Ninety patients who underwent OA in our clinic were reviewed retrospectively. The mean number of adrenal operations per month during this period was 0.38 +/- 0.12. The patient included 35 men (38.8%) and 55 women (61.2%), with a mean age of 46.4 +/- 17 years. The mean body mass index was 28.4 +/- 5.25, and the mean American Society of Anesthesiologists score was 2.6 +/- 0.57. The mean operative time was 88 +/- 27 min. The mean maximum diameter of all the lesions was 4.8 +/- 1.3 cm (range: 1.2-21 cm). The mean blood loss was 118 +/- 23 ml during the operations. Postoperative complications were observed in four patients (5.5%). There was no mortality. The length of hospital stay was 6.2 +/- 2.1 days. The most frequent type of the histological type was benign adenoma (48.8%). Conclusion: OA in a developing country is a safe method as an alternative for laparoscopic adrenalectomy which has a difficult learning curve.