Based on bibliometric information from Scopus for the period 1996-2019, this document characterizes the evolution of Uruguayan scientific production and establishes the areas in which the country has a revealed comparative advantage (RCA). Methodologically, it is proposed that there is a RCA in an area if this area has a greater share in national scientific production than the share of the area in world scientific production. The evidence presented considers two measurements of scientific production (published articles and citations) and three levels of aggregation in the areas (a minor one with 5 large areas, a more detailed one with 27 disciplines and another even more granular with more than 300 disaggregations). Within Health Sciences there is a RCA in Veterinary, Nursing and Medicine. Within Life Sciences there is a RCA in Agricultural and Biological Sciences, Immunology and Microbiology and Biochemistry, Genetics and Molecular Biology. In Physical Sciences there is only a RCA in Environmental Science and in Social Sciences only in Economics, Econometrics and Finance.Comment: Pages 48, in Spanish language, 2 tables, 20 figure