Urinary tract infections are the most common bacterial lesions of humans. About
150 million cases of these diseases are registered annually in the world. About 95 % of urinary tract infections occur when bacteria migrate ascending from the urethra to the bladder, and in acute uncomplicated pyelonephritis, from the ureter to the kidney. An increased risk of developing urinary tract infections is observed in infants, the elderly, pregnant women, patients with spinal cord injuries, diabetes mellitus, multiple
sclerosis, immunodeficiency diseases, structural abnormalities of the kidneys and urinary tract. The autumn-winter period is a traditional season of development and exacerbation of diseases of the urinary system. This is facilitated by a high risk of hypothermia, a relative decrease in physical activity, a change in the drinking regime and a partial decrease in the body's defenses against colds. The main and most common inflammatory diseases of the urinary system include urethritis, cystitis, pyelonephritis. Due to the anatomical features of the structure of the urethra (the urethra of men is longer and narrower than that of women), urethritis of various etiologies are more common in the stronger sex. Women, for the most part, suffer from cystitis, since the causative agents of infection easily bypass the short and relatively wide urethra and immediately enter the bladder, where they find fairly favorable conditions for reproduction [5].