Growing prevalence of allergic diseases requires concentrating on patients' education, prevention, suitable organization of medical care as well as the early diagnosis. It the presented retrospective study of the results of Prevention Allergic Diseases Programme in children in Lodz region in years 2000-2003 was analysed. Analysis of medical records of patients undergone preventive program showed: solid growth of number of patients with allergic disease in frames of Programme, the solid growth of percentage of new diagnosed allergic diseases, essential changes in structure of diagnosed allergic diseases during Programme, particularly visible in the youngest age group up to 5 years of age as well as the systematic fall in number of hospitalization from asthma and atopic dermatitis. With attention on growing number of referred patients Program should be continued and with the reason of still missing good medical care in children of Lodz region.