Material and Methods: This is a descriptive cross-sectional study carried out over a period of 3 months from June 1 to August 31, 2022. The study population consisted of all urine samples collected in the laboratories of the three major hospitals in Niamey for Cytobacteriological Exam of Urin (CBEU) and concern patients aged at least 60 years.

Results: Of a total of 3757 samples, 110 (2.4%) were at least 60 years old. The average age was 70.8 years with standard deviation 7.4 and extremes of 60 and 93 years. The sex predominance was male in 77.3% with a majority of external origin urine collect (83.6%). The clinical complains for requesting ECBU were urinary burning in 57.3% of cases and infectious reason findings in 24.5%. Comorbidities were hypertension and diabetes found in 30 and 3.6% respectively. The appearance of urine was cloudy in 95.5%, the presence of bacteria in 96.4%, leukocytes in 95.5% and the species frequently isolated were Escherichia coli (60.9%) and Klebsiella spp (25.4%).

Conclusion: The risk of complications from urinary tract infection in the elderly is common in both sexes. The clinical signs are polymorphics and the isolated germs are dominated by gram-negative bacilli, notably Escherichia coli and Klebsiella spp. Keywords: urinary infection, demography, clinic-paraclinic, geriatric, Niamey.