The invention relates to methods and systems for diagnosing oncological diseases. A method for predicting the probability of developing oncological diseases is characterized by the following steps: receiving an electronic medical record from a patient via a data input/output device, said record containing patient data in accordance with predetermined parameters； generating for the patient a set of localizations of a probable oncological process； correlating the data with said localizations according to empirical data regarding the influence of the former data on the possible risk of developing a malignant tumour at a given localization； obtaining maximum possible data values from a data storage device； determining the oncological risk for each localization from among the aforesaid set by summing the ratios of the data values obtained during the previous step and their maximum values obtained from the data storage device, wherein each ratio is multiplied by a predetermined coefficient according to the influence on the risk of developing an oncological disease； determining a characteristic of hereditary predisposition to developing oncological diseases by calculating the number of blood relatives who have had an oncological disease, wherein each instance of oncological disease found is multiplied by a coefficient depending on the degree of kinship of the blood relative； determining an additional parameter characterizing an increased risk of developing an oncological disease； and determining the risk of developing a disease on the basis of the oncological risk values for each localization, wherein the risk of developing an oncological disease, the oncological risk for each localization, the additional parameter characterizing an increased risk of developing an oncological disease for each localization, and the characteristic of hereditary predisposition to developing oncological diseases for each localization are displayed on the data input/output device.La présente in
