The serotonin neurotransmitter has been associated with the pathogenesis of mood disorders and schizophrenia. Serotonin receptors genes may therefore be candidate genes for the study of the genetics of these disorders. In this study, patients with schizophrenia (n=235) and controls (n=344) were analysed to determine the correlation between the 5HT(2A) receptor gene T102C polymorphism and schizophrenia. No association was found between the studied polymorphism and schizophrenia (p=0.854 for alleles and p=0.945 for genotypes). Results were also not significant when analysed by gender (for male p=0.861-allele frequency and p=0.467-genotype frequency, for female p=0.857-allele frequency and p=0.833-genotype frequency). Subgroups with regard to schizophrenia subtypes, age of onset and clinical course of schizophrenia were analysed with negative results.