Classification of disease: urinary stones 56.9%, benign prostatic hyperplasia (BPH) 15.1%, phimosis 12.9%, superficial bladder cancer 3.2%, urethral stricture 2.6%, ureteropelvic junction obstruction 1.9%, hypospadias 2.3%, renal cyst 2.3%, renal tumor 0.3%, urinary system trauma 1.3%, urinary tract infection 1.3%.