[Chronic prostatitis: 1) etiology, pathogenesis, modeling, classification].

Apparently, chronic prostatitis subsequently is becoming a disease of not only young and middle-aged men. Its significance in geriatrics is remarkably growing over the past years. Besides, one may note a hurricane-like enlargement of a research literature on this problem. This is linked with countless updated results on prostate morpho-functional peculiarities as well as on causative agents, mechanisms, remodeling, clinical course, and therapeutic approaches on prostatitis. The necessity of summarizing, analysis and discussion of these results is undoubted. Because of enormous material the represented overview of literature has been subdivided in 2 parts, the first of which is given above.