The objective of the study was investigation of the frequency and type of urination disorders in children with or without vesicouretic reflux. Medical records were analysed concerning 282 children, mean age 8, with recurrent infections of the urinary system, 90% of them girls. Groups of children with and without reflux were selected (28.72% and 71.28% respectively). In 92.55% of the children examined various urination disorders were observed. No statistically significant differences were noted in the frequency of occurrence of noctural enuresis, urgent tenesmus and infrequent emptying of the bladder between the group of children with and without vesicouretic reflux. In children from the latter group, daytime wetting and urethral symptoms were noted significantly more often. Based on the results of the study it was presumed that the symptoms of urination disorders in children with the urinary system infection cannot unequivocally suggest the presence of vesicouretic reflux. It is necessary to expand the diagnostics by urodynamic tests, which allow determination of whether the infection is the cause or effect of disorders of the lower urinary tract function, these disorders being conducive to infection and the development of vesicourinary reflux.