Introduction: Chronic rhinosinusitis is a complex inflammatory disorder causing a significant health problem worldwide. Chronic rhinosinusitis remains a clinically based diagnosis collaborated with Computed Tomography-Scan and nasal endoscopy. Functional Endoscopic Sinus Surgery is one of the most common surgical techniques for chronic rhinosinusitis patients. Objectives: To provide a better understanding of the epidemiological characteristic of chronic rhinosinusitis in those who need a surgical intervention at Saiful Anwar General Hospital Ward. Patients and Methods: This were a cross-sectional retrospective descriptive study using medical records between January 1 st 2018 and December 31 th 2021 at Otorhinolaryngology-Head and Neck Surgery medical inpatient ward. Rhinology division alone admitted total 260 patients (98 patients with chronic rhinosinusitis and 162 patients without chronic rhinosinusitis). A total of 98 patients were included in this study. Computed Tomography-Scan was obtained as part of routine preparations before surgery and recorded in the medical records. Results: Chronic rhinosinusitis with nasal polyp majority was found in the group age 16-30 years old and chronic rhinosinusitis without nasal polyp in the group age 46-60 years old. 44 males and 54 females were included in this study. A dominant chief complaint was nasal blockage, the skin prick test procedure was mostly negative, the positive result from the skin prick test were mostly house dust mite. The dominant complication was orbital complication, most Functional Endoscopic Sinus Surgery procedures and revisions been done to Chronic rhinosinusitis with nasal polyp, comorbidity mostly deviated nasal septum, and the most sinus involved were maxillary sinus. Conclusion: Chronic rhinosinusitis remain one of most frequent disease treated as in patient of rhinology division Otorhinolaryngology-Head and Neck department. A better understanding and mapping of this disease especially in our hospital will help us in treating Chronic rhinosinusitis patients.