Objective: This study aimed to assess some demographical and clinical aspects and laboratory findings of patients presenting with the complaint of renal colic to the emergency department. Material and Methods: The study included a total of 150 adult patients presenting to the emergency department of our University hospital with the complaint of renal colic between January 2009 and January 2010. The data were derived from the patient files of our hospital. Demographical data, time of admission, clinical findings together with laboratory and radiologic findings of patients were assessed. Mean values were calculated as mean value ± standard deviation. Results: Of the patients 91 (68,4 %) were male and the mean age was 38,9±16,5 years. Most of the patients were admitted in October (n= 22, 16,6 %). The most common complaint of the patients was flank pain. The erythrocytes was revealed in 72,2 % of the patients by the urinalysis. Calculus formation was determined in 71 (53,4 %) of the patients. The urinary system ultrasonography (USG) was applied to 39,1 % of the patients and localized renal calculus was detected in 52,0 % of those patients. It was identified that the most common region of localization was the ureter and detected in 29 of the patients (40,9 %). Conclusion: Ultrasonography is considerably a valuable method in identifying renal complications that might lead to dysfunctions in these patients. However, the absence of hematuria does not necessarily rule out the renal colic. We think that emergency physicians should rule out the urinary obstruction in such kind of patients.