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Purpose: Stone formation commonly affects the urinary system.The purpose of this study was to study the prevalence of stones in the renal system in both sexes, age groups affected, side incidence and the site of stone.

Materials and Methods: A total of 155 patients were included in the study who underwent Ultrasonography studies to detect the side, site and size of the stone in the urinary system.

Results: 118 patients (76.12%) were males and 37 patients (23.87%) were females. 76 patients (49.03%) had Right sided urolithiasis whereas 57 patients (36.77%) had Left sided urolithiasis. 22 patients (14.19%) had bilateral stones.90 patients (58.06%) had Renal stones, 30 patients (19.35%) had Ureteric  stones, 20 patients (12.90%) had Vesico-ureteric junction calculus, 11 patients (7.09%) had microconcretions and  4 patients (2.58%) had Pelvi- ureteric junction calculus. 31- 40 years was the most commonly affected age bracket wherein 56 patients (36.12%) were affected by urolithiasis. Size of calculi varied from sub millimetric to more than 10 mm. The most frequently found size of calculus measured in the range of 5.1-6 mm ( found in 21 patients , 13.54%).93 out of 155 symptomatic stones (85.54%) ranged between 1.1mm to 6mm. 

Conclusion: Urolithiasis more commonly affects males and the age group between31-40 years. Right sided urolithiasis is commoner although a significant number of patients had bilateral urolithiasis. Renal stones were commonest followed by lower ureteric stones. Calculi varied from sub millimetric to more than 10 mm. Stones smaller than 5 mm  generally pass, but larger stones require intervention.


Urolithiasis, Epidemiology, stone size, Renal calculus

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