We present abstracts of MSc theses defended in 2009 at the Faculty of Medicine, University “Ss Kiril and Metodij”, Skopje, Republic of Macedonia. English summaries are published as they are translated by authors and included in the final version of defended MSc. Macedonian Medical Master of Science (MSc) theses are deposited in the Central Medical Library in Skopje. Editorial Borad do not take any responsibility either for the content, nor the quality of the abstracts. At the Faculty of Medicine, 30 MSc theses were defended in 2009. Eight MSc theses are without abstarcts (26.7%), 8 MSc theses are with unstructured abstracts (26.7%), and 14 are with structured abstracts (46.7%) which is significant improvment in comparison with defended MSc in 2008. For one MSc there are not any details about the thesis (Elena Manoleva Nikolovska. Anthropometrical indicators for evaluation of the nutritive status in children between ages of 3 until 36 months), and one MSc was retracted (Ana Strezova. Genotyping of HLA-A, HLA-C and HLA-B loci with Reverse Line Strip hybridization in Macedonian Population and association of HLA class I alleles with spondilitis).We have to repeat that primary responsibility for the quality of the MSc theses belongs to the mentors, to the institutions they are representing, and to the Vice-Dean of science. All of them should be more actively involved in the preparation of Master of Science theses in order international standards to be achieved.