RUDN Journal of MedicineRUDN Journal of Medicine2313-02452313-0261Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)3170Research ArticleComorbidity, multimorbidity, polypathy - three views on the combined pathologyGudkovR ADepartment of PediatricsComancherro@mail.ruKonovalovO EDepartment of Health and Hygienekonovalov_oe@mail.ruRyazan State Medical UniversityPeoples' Friendship University of Russia150120151394507092016Copyright © 2015,2015History of the development of terminology and concepts of comorbidity has traced. Terms as comorbidity, multimorbidity, syntropy and polypathy was analyzed in the historical and etymological aspects. These terms are often used as synonyms, but each of them represents different looking on a single phenomenon. Usage of different terminology gives us versatile look at such a complex and multifaceted problem, as combined pathology.combined pathologycomorbiditymultimorbiditysyntropypolypathyсочетанная патологиякоморбидностьмультиморбидностьсинтропияполипатии